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Classification of minerals - Silicates
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Encyclopedia
This list gives an overview of the classification of minerals (silicates) and includes mostly IMA
International Mineralogical Association
The International Mineralogical Association is an international group of 38 national societies. The goal is to promote the science of mineralogy and to standardize the nomenclature of the 4000 plus known mineral species...

 recognized minerals and its groupings. This list complements the alphabetical list on List of minerals (complete) and List of minerals. Rocks, ores, mineral mixtures, not IMA approved minerals, not named minerals are mostly excluded. Mostly major groups only, or groupings used by New Dana Classification and Mindat
Mindat.org
Mindat.org is a non-commercial online mineralogical database, claiming to be the largest mineral database and mineralogical reference website on the internet....

.

Introduction

The grouping of the New Dana Classification and of the mindat.org is similar only, and so this classification is an overview only. Consistency is missing too on the group name endings (group, subgroup, series) between New Dana Classification and mindat.org. Category, class and supergroup name endings are used as layout tools in the list as well.
  • Abbreviations:
    • "*" - Mineral not IMA Approved.
    • "?" - IMA Discredited Mineral Name.
    • "REE" - Rare earth element
      Rare earth element
      As defined by IUPAC, rare earth elements or rare earth metals are a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium...

       (Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)
    • "PGE" - Platinum group element
      Platinum group
      The platinum group metals is a term used sometimes to collectively refer to six metallic elements clustered together in the periodic table.These elements are all transition metals, lying in the d-block .The six...

       (Ru, Rh, Pd, Os, Ir, Pt)

Subclass: Phyllosilicates


:Category:Clay minerals group
:Category:Medicinal clay

:Category:Mica group
:Category:Serpentine group/ Kaolinite-Serpentine group
:Category:Smectite group/ Montmorillonite group
  • Pyrophyllite-Talc group
  • Chlorite group
    Chlorite group
    The chlorites are a group of phyllosilicate minerals. Chlorites can be described by the following four endmembers based on their chemistry via substitution of the following four elements in the silicate lattice; Mg, Fe, Ni, and Mn....

    : Clinochlore, Nimite, Pennantite, Baileychlore, Cookeite, Donbassite, Gonyerite, Odinite, Sudoite, Orthochamosite

Subclass: Inosilicates


  • Astrophyllite group
    • Astrophyllite
      Astrophyllite
      Astrophyllite is a very rare, brown to golden-yellow hydrous potassium iron titanium silicate mineral. Belonging to the astrophyllite group, astrophyllite may be classed either as an inosilicate, phyllosilicate, or an intermediate between the two. It forms an isomorphous series with kupletskite, to...

       K2Na(Fe2+,Mn)7Ti2Si8O26(OH)4
    • Magnesioastrophyllite K2Na[Na(Fe2+,Fe3+,Mn)Mg2]Ti2Si8O26(OH)4F
    • Hydroastrophyllite (H3O,K)2Ca(Fe3+,Mn)5-6Ti2Si8O26(OH)4F
    • Niobophyllite K2Na(Fe2+,Mn)7(Nb,Ti)2Si8O26(OH)4(F,O)
    • Zircophyllite
      Zircophyllite
      Zircophyllite is a complex mineral, formula 372Si8O247. It crystallizes in the triclinic - pinacoidal crystal class as dark brown to black micaceous plates. It has perfect 001 cleavage, a Mohs hardness of 4 to 4.5 and a specific gravity of 3.34...

       K2(Na,Ca)(Mn,Fe2+)7(Zr,Nb)2Si8O26(OH)4F
    • Kupletskite K2Na(Mn,Fe2+)7(Ti,Nb)2Si8O26(OH)4F
    • Kupletskite-(Cs) (Cs,K)2Na(Mn,Fe2+,Li)7(Ti,Nb)2Si8O26(OH)4F
    • Niobokupletskite K2Na(Mn,Zn,Fe)7(Nb,Zr,Ti)2Si8O26(OH)4(O,F), Mills et al. (2009)
  • Sapphirine supergroup
    • Sapphirine group
      • Khmaralite (Mg,Al,Fe)16(Al,Si,Be)12O40, Sapphirine
        Sapphirine
        Sapphirine is a rare mineral, a silicate of magnesium and aluminium with the chemical formula 86O20 . Named for its sapphire-like colour, sapphirine is primarily of interest to researchers and collectors: well-formed crystals are treasured and occasionally cut into gemstones...

         (Mg,Al)8(Al,Si)6O20
    • Aenigmatite group
      • Aenigmatite (Na,Ca)4(Fe2+,Ti,Mg)12Si12O40, Krinovite NaMg2CrSi3O10, Wilkinsonite Na2(Fe2+)4(Fe3+)2Si6O20
    • Rhoenite group
      • Dorrite Ca2Mg2(Fe3+)4(Al,Fe3+)4Si2O20, Hogtuvaite (Ca,Na)2(Fe2+,Fe3+,Ti,Mg,Mn)6(Si,Be,Al)6O20, Makarochkinite Ca2(Fe2+)4Fe3+TiSi4BeAlO20, Rhonite Ca2(Mg,Fe2+,Fe3+,Ti)6(Si,Al)6O20, Serendibite Ca2(Mg,Al)6(Si,Al,B)6O20, Welshite Ca4Mg9Sb3O4[Si6Be3AlFe2O36]
    • Surinamite (Mg,Fe2+)3Al4BeSi3O16, Mills et al. (2009)

Pyroxene supergroup

  • Orthopyroxene group
    • Donpeacorite (Mn2+,Mg)Mg[SiO3]2, Enstatite
      Enstatite
      Enstatite is the magnesium endmember of the pyroxene silicate mineral series enstatite - ferrosilite . The magnesium rich members of the solid solution series are common rock-forming minerals found in igneous and metamorphic rocks...

       MgSiO3, Ferrosilite, FeSiO3
  • Clinopyroxene group
    • Aegirine
      Aegirine
      Aegirine is a member of the clinopyroxene group of inosilicates. Aegirine is the sodium endmember of the aegirine-augite series. Aegirine has the chemical formula NaFeSi2O6 in which the iron is present as Fe3+. In the aegirine-augite series the sodium is variably replaced by calcium with iron and...

       NaFe3+Si2O6, Augite
      Augite
      Augite is a single chain inosilicate mineral, 2O6. The crystals are monoclinic and prismatic. Augite has two prominent cleavages, meeting at angles near 90 degrees.-Characteristics:Augite is a solid solution in the pyroxene group...

       (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6], Clinoenstatite MgSiO3, Clinoferrosilite Fe2+SiO3, Diopside
      Diopside
      Diopside is a monoclinic pyroxene mineral with composition MgCaSi2O6. It forms complete solid solution series with hedenbergite and augite, and partial solid solutions with orthopyroxene and pigeonite. It forms variably colored, but typically dull green crystals in the monoclinic prismatic class...

       CaMg[Si2O6], Esseneite CaFe3+[AlSiO6], Grossmanite CaTi3+AlSiO6, Hedenbergite
      Hedenbergite
      Hedenbergite, CaFeSi2O6, is the iron rich end member of the pyroxene group having a monoclinic crystal system. The mineral is extremely rarely found as a pure substance, and usually has to be synthesized in a lab. It was named in 1819 after M.A. Ludwig Hedenberg, who was the first to define...

       CaFe2+[Si2O6], Jadeite
      Jadeite
      Jadeite is a pyroxene mineral with composition NaAlSi2O6. It is monoclinic. It has a Mohs hardness of about 6.5 to 7.0 depending on the composition. The mineral is dense, with a specific gravity of about 3.4. Jadeite forms solid solutions with other pyroxene endmembers such as augite and diopside ,...

       Na(Al,Fe3+)[Si2O6], Jervisite (Na,Ca,Fe2+)(Sc,Mg,Fe2+)[Si2O6], Johannsenite CaMn2+[Si2O6], Kanoite
      Kanoite
      Kanoite is a light pinkish brown silicate mineral that is found in metamorphic rocks. It is an inosilicate and has a formula of 2Si2O6. It is a member of pyroxene group and clinopyroxene subgroup.-Crystallography:...

       Mn2+(Mg,Mn2+)[Si2O6], Kosmochlor NaCr[Si2O6], Kushiroite CaAl[Si2O6], Namansilite NaMn3+[Si2O6], Natalyite Na(V3+,Cr)[Si2O6], Petedunnite Ca(Zn,Mn2+,Mg,Fe2+)[Si2O6], Pigeonite
      Pigeonite
      Pigeonite is a mineral in the clinopyroxene group. It has a general formula of Si2O6. The calcium cation fraction can vary from 5% to 25%, with iron and magnesium making up the rest of the cations....

       (Mg,Fe2+,Ca)(Mg,Fe2+)Si2O6, Spodumene
      Spodumene
      Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate, LiAl2, and is a source of lithium. It occurs as colorless to yellowish, purplish, or lilac kunzite , yellowish-green or emerald-green hiddenite, prismatic crystals, often of great size...

       LiAlSi2O6

Amphibole supergroup
  • Mg-Fe-Mn-Li group
    • Anthophyllite
      Anthophyllite
      Anthophyllite is an amphibole mineral: 7Si8O222, magnesium iron inosilicate hydroxide. Anthophyllite is polymorphic with cummingtonite. Some forms of anthophyllite are lamellar or fibrous and are used as asbestos...

       [ ]Mg7Si8O22(OH)2, Clinoferroholmquistite [ ](Li2(Fe2+)3Al2)Si8O22(OH)2, Cummingtonite
      Cummingtonite
      Cummingtonite is a metamorphic amphibole with the chemical composition 7Si8O222, magnesium iron silicate hydroxide.Monoclinic cummingtonite is compositionally similar and polymorphic with orthorhombic anthophyllite, which is a much more common form of magnesium-rich amphibole, the latter being...

       [ ]Mg7Si8O22(OH)2, Ferri-clinoferroholmquistite [ ]Li2((Fe3+)2(Fe2+)3)Si8O22(OH)2, Ferri-clinoholmquistite [ ]Li2Mg3(Fe3+)2(Si8O22)(OH)2, Ferripedrizite NaLi2((Fe3+)2Mg2Li)Si8O22(OH)2, Ferro-anthophyllite [ ](Fe2+)7Si8O22(OH)2, Ferrogedrite [ ](Fe2+)5Al2Si6Al2O22(OH)2, Ferroholmquistite [ ](Li2(Fe2+)3Al2)Si8O22(OH)2, Ferropedrizite NaLi2((Fe3+)2Mg2Li)Si8O22(OH)2, Fluoro-sodic-pedrizite NaLi2(Mg2Al2Li)S5Si8O22(OH)2, Gedrite
      Gedrite
      Gedrite is a silicate mineral of the amphibole group with formula: 2[3Al2]O222.Gedrite occurs in contact and medium to high grade metamorphic rocks in association with garnet, cordierite, anthophyllite, cummingtonite, sapphirine, sillimanite, kyanite, quartz, staurolite and biotite.Gedrite was...

       [ ]Mg5Al2Si6Al2O22(OH)2, Grunerite
      Grunerite
      Grunerite is a mineral of the amphibole group of minerals with formula Fe7Si8O222. It is the iron endmember of the grunerite-cummingtonite series. It forms as fibrous, columnar or massive aggregates of crystals. The crystals are monoclinic prismatic. The luster is glassy to pearly with colors...

       [ ](Fe2+)7Si8O22(OH)2, Holmquistite
      Holmquistite
      Holmquistite is a lithium magnesium aluminium inosilicate mineral with chemical formula: Li23Al2Si8O222. It crystallizes in the orthorhombic crystal system as prismatic crystals up to 10 cm or as massive aggregates...

       [ ](Li2Mg3Al2)Si8O22(OH)2, Manganocummingtonite Na(Na,Mn)2(Mg4,Fe3+)5Si8O22(OH)2, Manganogrunerite [ ]Mn2(Fe2+)5Si8O22(OH)2, Proto-anthophyllite (Mg,Fe)7Si8O22(OH)2, Protoferro-anthophyllite (Fe2+,Mn2+)2(Fe2+,Mg)5(Si4O11)2(OH)2, Protomangano-ferro-anthophyllite (Mn2+,Fe2+)2(Fe2+,Mg)5(Si4O11)2(OH)2, Sodicanthophyllite NaMg7Si8O22(OH)2, (Sodic-ferri-clinoferroholmquistite), Sodic-ferri-ferropedrizite NaLi2((Fe3+)2(Fe2+)3)Si8O22(OH)2, Sodic-ferripedrizite Na(LiNa)((Fe3+)2Mg2Li)Si8O22(OH)2, Sodic-ferro-anthophyllite Na(Fe2+)7Si8O22(OH)2, Sodic-ferrogedrite Na(Fe2+)6AlSi6Al2O22(OH)2, Sodicgedrite NaMg6AlSi6Al2O22(OH)2
  • Calcic group
    • Actinolite
      Actinolite
      Actinolite is an amphibole silicate mineral with the chemical formula .-Etymology:The name actinolite is derived from the Greek word aktis , meaning "beam" or "ray", because of the mineral's fibrous nature...

      ? Ca2(Mg,Fe2+)5(Si8O22)(OH)2, Aluminoferrotschermakite [ ]Ca2(Fe2+)3Al2(Si6Al2)O22(OH)2, Alumino-Magnesiosadanagaite NaCa2[Mg3(Al,Fe3+)2]Si5AlO22(OH)2, Aluminotschermakite [ ]Ca2(Mg3Al2)(Si6Al2)O22(OH)2, Cannilloite CaCa2Mg4Al(Si5Al3)O22(OH)2, Chloro-potassichastingsite  KCa2((Fe2+)3MgFe3+)(Si6Al2)S8O22Cl2, Chloro-potassicpargasite KCa2(Mg4Al)(Si6Al2)O22Cl2, Edenite
      Edenite
      Edenite is a double chain silicate mineral of the amphibole group with the general chemical composition Na[Ca2][Mg5[2|AlSi7O22]. Edenite is named for the locality of Edenville, Orange County, New York, where it was first described.- Occurrence :...

       Na[Ca2][Mg5][(OH)2|AlSi7O22], Ferri-ferrotschermakite [ ]Ca2(Fe2+)3(Fe3+)2(Si6Al2)O22(OH)2, Ferritschermakite Ca2(Fe2+,Mg)3Al2(Si7Al)O22(OH)2, Ferro-Actinolite? [Ca2][(Fe2+,Mg)5][(OH)2|Si8O22], Ferro-edenite [Na][Ca2][(Fe2+)5][(OH)2|AlSi7O22], Ferrohornblende? [Ca2][(Fe2+)4Al][(OH)2|AlSi7O22], Ferrokaersutite [Na][Ca2][(Fe2+)4Ti][O|OH|Al2Si6O22], Ferropargasite [Na][Ca2][(Fe2+)4Al][(OH)2|Al2Si6O22], Ferrotschermakite? [Ca2][(Fe2+)3Fe3+Al][(OH)2|Al2Si6O22], (Ferrocannilloite), Fluoro-edenite Na[Ca2][Mg5][(F,OH)2|AlSi7O22], Fluoro-magnesiohastingsite (Na,K)Ca2(Mg,Fe3+,Ti)5(Si,Al)8O22F2, Fluoropargasite NaCa2(Mg3Fe2+Al)5(Si6Al2O22)F2, Fluoro-potassichastingsite KCa2((Fe2+)2,Mg2,Fe3+)S5(Si6Al2)8O22F2, Hastingsite [Na][Ca2][(Fe2+)4Fe3+][(OH)2|Al2Si6O22], Joesmithite PbCa2(Mg,Fe2+,Fe3+)5Si6Be2O22(OH)2, Kaersutite
      Kaersutite
      Kaersutite is a dark brown to black amphibole mineral with formula: NaCa2Si6Al2O232.It occurs as phenocrysts in alkalic volcanic rocks; in nodules of peridotite and gabbro in alkalic basalts; in syenites, monzonites and carbonatite tuffs...

       NaCa2(Mg4Ti)(Si6Al2)O23(OH), Magnesiohastingsite
      Magnesiohastingsite
      Magnesiohastingsite is a calcium-containing amphibole and a member of the hornblende group. It is an inosilicate with the formula NaCa2Si6Al2O222 and molar mass 864.69 g. In synthetic magnesiohastingsite it appears that iron occurs both as ferrous iron Fe2+ and as ferric iron Fe3+, but the ideal...

       Na[Ca2][Mg4Fe3+][(OH)2|Al2Si6O22], Magnesiohornblende? [Ca2][Mg4Al][(OH)2|AlSi7O22], Magnesiosadanagaite [Na][Ca2][Mg3Al2][(OH)2|Al3Si5O22], Pargasite
      Pargasite
      Pargasite is a complex inosilicate mineral of the amphibole group with formula NaCa24AlO222.It was first described for an occurrence in Pargas, Finland in 1814 and named for the locality....

       [Na][Ca2][Mg4Al][(OH)2|Al2Si6O22], Parvo-mangano-edenite Na(CaMn)2Mg5(Si7Al)O22(OH)2, Parvo-manganotremolite [ ](CaMn)2Mg5(Si7Al)O22(OH)2, (Potassic-aluminosadanagaite), Potassic-ferrisadanagaite [K][Ca2][(Fe2+)3(Fe3+)2][(OH)2|Al3Si5O22], Potassic-ferropargasite KCa2((Fe2+)4Al)Si6Al2O22(OH)2, Potassic-hastingsite KCa2(Fe2+)4Fe3+Si6Al2O22(OH), Potassic-magnesiohastingsite (K,Na)Ca2(Mg,Fe2+,Fe3+,Al)5(Si,Al)8O22(OH,Cl)2, Potassic-magnesiosadanagaite (K,Na)Ca2(Mg,Fe2+,Al,Ti)5[(Si,Al)8O22](OH)2, Potassicpargasite [K][Ca2][Mg4Al][(OH)2|Al2Si6O22], Potassicsadanagaite, [K][Ca2][(Fe2+)3Al2][(OH)2|Al3Si5O22], Sadanagaite (K,Na)Ca2(Fe2+,Mg,Al,Ti)5[(Si,Al)8O22](OH)2, Tremolite
      Tremolite
      Tremolite is a member of the amphibole group of silicate minerals with composition: Ca2Mg5Si8O222. Tremolite forms by metamorphism of sediments rich in dolomite and quartz. Tremolite forms a series with actinolite and ferro-actinolite. Pure magnesium tremolite is creamy white, but the color grades...

      ?, [Ca2][Mg5][(OH)2|Si8O22], Tschermakite
      Tschermakite
      The endmember hornblende tschermakite is a calcium rich monoclinic amphibole mineral. It is frequently synthesized along with its ternary solid solution series members tremolite and cummingtonite so that the thermodynamic properties of its assemblage can be applied to solving other solid solution...

      ?, [Ca2][Mg3Fe3+Al][(OH)2|Al2Si6O22]
  • Sodic-calcic group
    • Aluminobarroisite [ ]CaNaMg3Al2(Si7Al)O22(OH)2, Alumino-magnesiotaramite Na(CaNa)(Mg3Al2)(Si6Al2)O22(OH)2, Aluminotaramite Na[CaNa][(Fe2+)3Al2][(OH)2|Al2Si6O22], Barroisite? [CaNa][Mg3AlFe3+][(OH)2|AlSi7O22], Ferribarroisite CaNa(Fe2+,Mg)3(Fe3+)2[AlSi7O22](OH)2, Ferrikatophorite Na2Ca(Fe2+,Mg)4Fe3+(Si7Al)O22(OH)2, Ferri-ferrobarroisite [ ]CaNa(Fe2+)3(Fe3+)2(Si7Al)O22(OH)2, Ferri-magnesiotaramite NaCaNaMg3(Fe3+)2[Si6Al2O22](OH)2, Ferritaramite Na(CaNa)(Fe2+,Mg)3(Fe3+)2[Si6Al2O22](OH)2, Ferriwinchite ([ ],Na)(Na,Ca)2(Mg,Fe2+)4Fe3+[Si8O22](OH)2, Ferrobarroisite? [CaNa][(Fe2+)3AlFe3+][(OH)2|AlSi7O22], Ferrorichterite Na[CaNa][(Fe2+)5][(OH)2|Si8O22], Ferrowinchite? [CaNa][(Fe2+)4(Al,Fe3+)][(OH)2|Si8O22], Fluoro-alumino-magnesiotaramite Na(CaNa)(Mg3Al2)(Si6Al2)O22F2, Fluoro-potassicrichterite K[CaNa][Mg5][(F,OH)2|Si8O22], Fluororichterite Na(CaNa)Mg5[Si8O22]F2, Katophorite Na[CaNa][(Fe2+)4(Al,Fe3+)][(OH)2|AlSi7O22], Magnesiokatophorite Na[CaNa][Mg4(Al,Fe3+)][(OH)2|AlSi7O22], Magnesiotaramite Na[CaNa][Mg3AlFe3+][(OH)2|Al2Si6O22], Parvowinchite Na(NaMn2+)(Mg4Fe3+)Si8O22(OH)2, Richterite
      Richterite
      Richterite is a sodium calcium magnesium silicate mineral belonging to the amphibole group. If iron replaces the magnesium within the structure of the mineral, it is called ferrorichterite; if fluorine replaces the hydroxyl, it is called fluororichterite. Richterite crystals are long and prismatic,...

       Na[CaNa][Mg5][(OH)2|Si8O22], Taramite Na[CaNa][(Fe2+)3AlFe3+][(OH)2|Al2Si6O22], Winchite? [CaNa][Mg4(Al,Fe3+)][(OH)2|Si8O22]
  • Sodic group
    • Arfvedsonite
      Arfvedsonite
      Arfvedsonite is a sodium amphibole mineral with composition: [Na][Na2][4Fe3+][2|Si8O22]. It crystallizes in the monoclinic prismatic crystal system and typically occurs as greenish black to bluish grey fibrous to radiating or stellate prisms....

       NaNa2((Fe2+)4Fe3+)Si8O22(OH)2, Dellaventuraite NaNa2(Mg2,Mn3+,Li,Ti)Si8O22O2, Eckermannite NaNa2(Mg4Al)Si8O22(OH)2, Ferric-ferronyboite NaNa2(Fe2+)3(Fe3+)2(Si7Al)O22(OH)2, (Ferricnyboite), Ferro-eckermannite NaNa2((Fe2+)4Al)Si8O22(OH)2, Ferroglaucophane [ ]Na2((Fe2+)3Al2)Si8O22(OH)2, Fluoro-ferroleakeite NaNa2((Fe2+)2(Fe3+)2Li)Si8O22F2, Fluoro-magnesio-arfvedsonite NaNa2(Mg,Fe2+)4Fe3+[Si8O22](F,OH)2, Fluoronyboite NaNa2(Al2Mg3)(Si7Al)O22(F,OH)2, Fluoro-potassic-magnesio-arfvedsonite KNa2Mg4Fe3+Si8O22F2, Glaucophane
      Glaucophane
      Glaucophane is a mineral belonging to the amphibole group, chemical formula []Na2]Mg3Al2][2|Si8O22].-Name:It is named from its typical blue color . Glaucophane crystallizes in the monoclinic system....

       [ ]Na2(Mg3Al2)Si8O22(OH)2, Kornite Na(CaNa)(Fe2+)4(Al,Fe3+)Si7AlO22(OH)2, Kozulite NaNa2(Mn2+)4(Fe3+,Al)Si8O22(OH)2, Leakeite NaNa2(Mg2(Fe3+)2Li)Si8O22(OH)2, Magnesio-arfvedsonite NaNa2(Mg4Fe2+)Si8O22(OH)2, Magnesioriebeckite [ ]Na2[(Mg,Fe2+)3(Fe3+)2]Si8O22(OH)2, Nyboite NaNa2(Mg3Al2)Si7AlO22(OH)2, Obertiite NaNa2(Mg3Fe3+Ti)Si8O22(O,F,OH)2, Potassicarfvedsonite KNa2(Fe2+)4Fe3+Si8O22(OH)2, Potassicleakeite KNa2Mg2(Fe3+)2LiSi8O22(OH)2, Potassic-magnesio-arfvedsonite KNa2(Mg4Fe3+)Si8O22(OH)2, Riebeckite
      Riebeckite
      Riebeckite is a sodium-rich member of the amphibole group of silicate minerals, chemical formula [][Na2][32][2|Si8O22]. It forms a series with magnesioriebeckite. It crystallizes in the monoclinic system, usually as long prismatic crystals showing a diamond-shaped cross section, but also in...

       [ ]Na2((Fe2+)3(Fe3+)2)Si8O22(OH)2, Ungarettiite NaNa2((Mn2+)2(Mn3+)3)Si8O22O2
  • Na-Ca-Mg-Fe-Mn-Li group
    • Ferri-ottoliniite [ ](Na,Li)(Mg3(Fe3+)2)Si8O22(OH)2, Ferriwhittakerite Na(NaLi)(Mg2(Fe3+)2Li)Si8O22(OH)2, Ottoliniite [ ](Na,Li)(Mg3Fe3+Al)Si8O22(OH)2, Whittakerite Na(NaLi)(Mg2AlFe3+Li)Si8O22(OH)2, Mills et al. (2009)

Subclass: Cyclosilicates


  • Tourmaline group
    • Alkali-Deficient Tourmaline subgroup - Foitite subgroup
      • Foitite [ ][(Fe2+)2(Al,Fe3+)][Al6][(OH)3|OH|(BO3)3|Si6O18], Magnesiofoitite [ ][Mg2(Al,Fe3+)][Al6][(OH)3|OH|(BO3)3|Si6O18], Rossmanite [ ][LiAl2][Al6][(OH)3|OH|(BO3)3|Si6O18], Oxy-Rossmanite [ ][LiAl2]Al6(OH)3O(BO3)3[Si6O18]
    • Calcic Tourmaline subgroup - Liddicoatite subgroup
      • Liddicoatite
        Liddicoatite
        Liddicoatite is a rare member of the tourmaline group of minerals, elbaite subgroup, and the theoretical calcium endmember of the elbaite-liddicoatite series; the pure end-member has not yet been found in nature. Liddicoatite is indistinguishable from elbaite by X-ray diffraction techniques...

         [Ca][Li2Al][Al6][(OH)3|F|(BO3)3|Si6O18], Uvite
        Uvite
        Uvite is a mineral with the chemical formula CaMg334. It is a rare mineral that is found in calcium rich contact metamorphic rocks with increased amounts of boron. Uvite is trigonal hexagonal, which means that it has three equal length axes at 120 degrees, all perpendicular to its fourth axis which...

         CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)4, Feruvite [Ca][(Fe2+,Mg)3][MgAl5][(OH)3|F|(BO3)3|Si6O18], Hydroxyuvite (IMA2000-030 was not approved, but suspended) CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3(OH)
    • Ferric Tourmaline subgroup - Buergerite subgroup
      • Buergerite
        Buergerite
        Buergerite is a mineral species belonging to the tourmaline group. It was first described for an occurrence in rhyolitic cavities near Mexquitic, San Luis Potosi, Mexico. It was approved as a mineral in 1966 by the IMA and named in honor of Martin J. Buerger Professor of Mineralogy at the...

         [Na][(Fe3+)3][Al6][O3|F|(BO3)3|Si6O18], Povondraite
        Povondraite
        Povondraite is a mineral from the tourmaline group. Discovered at the San Francisco mine, near Villa Tunari , Bolivia, in 1976, originally it was called ferridravite, for the composition and the assumed relationship to dravite, i.e., "ferric dravite" . However later investigations yielded a new...

         [Na][(Fe3+)3][(Fe3+)4Mg2][(OH)3|O|(BO3)3|Si6O18]
    • Lithian Tourmaline subgroup - Elbaite subgroup
      • Olenite NaAl9B3Si6O27O3OH, Oxy-Dravite Na(MgAl2)(MgAl5)Si6O18(BO3)3(OH)3O, Elbaite
        Elbaite
        Elbaite, a sodium, lithium, aluminium boro-silicate, is a mineral species belonging to the tourmaline group. Elbaite forms three series, with dravite, with liddicoatite, and with schorl...

         Na(Al1.5Li1.5)Al6(OH)3(OH)(BO3)3Si6O18
    • Sodic Tourmaline subgroup - Schorl subgroup
      • Dravite [Na][Mg3][Al6][(OH)3|OH|(BO3)3|Si6O18], Fluor-Dravite NaMg3Al6(OH)3F(BO3)3(Si6O18), Schorl [Na][(Fe2+)3][Al6][(OH)3|OH|(BO3)3|Si6O18], Schorl-(F) [Na][(Fe2+)3][Al6][(OH)3|F,OH|(BO3)3|Si6O18], Chromdravite [Na][Mg3][(Cr3+,Fe3+)6][(OH)3|OH|(BO3)3|Si6O18], Vanadiumdravite [Na][Mg3][(V3+)6][(OH)3|OH|(BO3)3|Si6O18]
  • Eudialyte group
    • Carbokentbrooksite (Na,[ ])12(Na,Ce)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O
    • Eudialyte
      Eudialyte
      Eudialyte, whose name derives from the Greek phrase Εὖ διάλυτος eu dialytos, meaning "well decomposable", is a somewhat rare, red silicate mineral, which forms in alkaline igneous rocks, such as nepheline syenites...

       Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2 (?)
    • Feklichevite Na11Ca9(Fe3+,Fe2+)2Zr3Nb[Si25O73](OH,H2O,Cl,O)5
    • Ferrokentbrooksite Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3(Cl,F,OH)2
    • Georgbarsanovite Na12(Mn,Sr,REE)3Ca6(Fe2+)3Zr3NbSi25O76Cl2•H2O
    • Golyshevite (Na,Ca)10Ca9(Fe3+,Fe2+)2Zr3NbSi25O72(CO3)(OH)3•H2O
    • Ikranite (Na,H3O)15(Ca,Mn,REE)6(Fe3+)2Zr3([ ],Zr)([ ],Si)Si24O66(O,OH)6Cl•2-3H2O
    • Johnsenite-(Ce) Na12(Ce,REE,Sr)3Ca6Mn3Zr3W(Si25O73)(CO3)(OH,Cl)2
    • Kentbrooksite (Na,REE)15(Ca,REE)6Mn2+Zr3NbSi25O74F2•2H2O
    • Khomyakovite Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2
    • Manganokhomyakovite Na12Sr3Ca6Mn3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2
    • Mogovidite Na9(Ca,Na)6Ca6Fe2Zr3[ ]Si25O72(CO3)(OH)4
    • Oneillite Na15Ca3Mn3(Fe2+)3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
    • Raslakite Na15Ca3Fe3(Na,Zr)3Zr3(Si,Nb)(Si25O73)(OH,H2O)3(Cl,OH)
    • Rastsvetaevite Na27K8Ca12Fe3Zr6Si52O144(O,OH,H2O)6Cl2
    • Taseqite Na12Sr3Ca6Fe3Zr3NbSi25O73(O,OH,H2O)3Cl2
    • Zirsilite-(Ce) (Na,[ ])12(Ce, Na)3Ca6Mn3Zr3Nb(Si25O73)(OH)3(CO3)•H2O
    • Alluaivite
      Alluaivite
      Alluaivite is an exceedingly rare mineral of the eudialyte group, with complex formula written as Na1963Si26O74Cl·2H2O. It is unique among the eudialyte group as the only titanosilicate . It is named after Mt...

       Na19(Ca,Mn2+)6(Ti,Nb)3(Si3O9)2(Si10O28)2Cl•2H2O
    • Andrianovite Na12(K,Sr,Ce)3Ca6Mn3Zr3Nb(Si25O73)(O,H2O,OH)5
    • Aqualite (H3O)8(Na,K,Sr)5Ca6Zr3Si26O66(OH)9Cl
    • Dualite Na30(Ca,Na,Ce,Sr)12(Na,Mn,Fe,Ti)6Zr3Ti3MnSi51O144(OH,H2O,Cl)9
    • Labyrinthite (Na,K,Sr)35Ca12Fe3Zr6TiSi51O144(O,OH,H2O)9Cl3, Mills et al. (2009)

Subclass: Nesosilicates


  • Zircon group: MSiO4 (a group of simple tetragonal silicates where M = tetravalent Zr, Th, Hf)
    • Hafnon
      Hafnon
      Hafnon is a hafnium silicate mineral, chemical formula SiO4 or SiO4. In natural zircon ZrSiO4 part of the zirconium is replaced by the very similar hafnium and so natural zircon is never pure ZrSiO4...

       HfSiO4, Stetindite Ce[SiO4], Thorite
      Thorite
      Thorite, SiO4, is a rare nesosilicate of thorium that crystallizes in the tetragonal system and is isomorphous with zircon and hafnon. It is the most common mineral of thorium and is nearly always strongly radioactive. It was named in 1829 to reflect its thorium content...

       (Th,U)SiO4, Zircon
      Zircon
      Zircon is a mineral belonging to the group of nesosilicates. Its chemical name is zirconium silicate and its corresponding chemical formula is ZrSiO4. A common empirical formula showing some of the range of substitution in zircon is 1–x4x–y...

       ZrSiO4, Coffinite
      Coffinite
      Coffinite is a uranium-bearing silicate mineral with formula: U1-x4x.It occurs as black incrustations, dark to pale-brown in thin section. It has a grayish black streak. It has a brittle to conchoidal fracture. The hardness of coffinite is between 5 and 6.It was first described in 1954 for an...

       U(SiO4)1-x(OH)4x, Thorogummite Th(SiO4)1-x(OH)4x, IMA2008-035 CeSiO4
  • Olivine group
    • Calcio-Olivine Ca2SiO4, Fayalite
      Fayalite
      Fayalite is the iron-rich end-member of the olivine solid-solution series. In common with all minerals in the olivine group, fayalite crystallizes in the orthorhombic system with cell parameters a 4.82 Å, b 10.48 Å and c Å 6.09.Iron rich olivine is a relatively common constituent of acidic and...

       (Fe2+)2[SiO4], Forsterite
      Forsterite
      Forsterite is the magnesium rich end-member of the olivine solid solution series. Forsterite crystallizes in the orthorhombic system with cell parameters a 4.75 Å , b 10.20 Å and c 5.98 Å .Forsterite is associated with igneous and metamorphic rocks and has also been found in meteorites...

       Mg2[SiO4], Laihunite Fe2+(Fe3+)2(SiO4)2, Liebenbergite (Ni,Mg)2[SiO4], Olivine
      Olivine
      The mineral olivine is a magnesium iron silicate with the formula 2SiO4. It is a common mineral in the Earth's subsurface but weathers quickly on the surface....

       (Mg,Fe2+)2[SiO4], Tephroite
      Tephroite
      Tephroite is a non-metallic manganese silicate mineral with the formula, Mn2SiO4.It was first described for an occurrence at the Sterling Hill Mine and Franklin, New Jersey, USA. It occurs in iron-manganese ore deposits and their related skarns. It also occurs in metamorphosed manganese-rich...

       (Mn2+)2[SiO4]
  • Phenakite group
    • Phenakite
      Phenakite
      Phenakite or phenacite is a fairly rare nesosilicate mineral consisting of beryllium orthosilicate, Be2SiO4. Occasionally used as a gemstone, phenakite occurs as isolated crystals, which are rhombohedral with parallel-faced hemihedrism, and are either lenticular or prismatic in habit: the...

       Be2SiO4, Willemite
      Willemite
      Willemite is a zinc silicate mineral and a minor ore of zinc. It is highly fluorescent under shortwave ultraviolet light.It occurs in all different colors in daylight, in fibrous masses, solid brown masses , and apple green gemmy masses.It was discovered in 1830 and named after William I of the...

       Zn2SiO4, Eucryptite
      Eucryptite
      Eucryptite is a lithium bearing aluminium silicate mineral with formula LiAlSiO4. It crystallizes in the trigonal - rhombohedral crystal system. It typically occurs as granular to massive in form and may pseudomorphically replace spodumene. It has a brittle to conchoidal fracture and indistinct...

       LiAlSiO4
  • Al2(SiO4)O
    • Sillimanite subgroup
      • Sillimanite
        Sillimanite
        Sillimanite is an alumino-silicate mineral with the chemical formula Al2SiO5. Sillimanite is named after the American chemist Benjamin Silliman . It was first described in 1824 for an occurrence in Chester, Middlesex County, Connecticut, USA....

         Al[6]Al[4]OSiO4, Mullite
        Mullite
        Mullite or porcelainite is a rare silicate mineral of post-clay genesis. It can form two stoichiometric forms 3Al2O32SiO2 or 2Al2O3 SiO2. Unusually, mullite has no charge balancing cations present...

         Al(4+2x)Si(2-2x)O(10-x) (x =0.17 to 0.59), Boromullite Al4.5SiB0.5O9.5
    • Andalusite subgroup
      • Andalusite
        Andalusite
        Andalusite is an aluminium nesosilicate mineral with the chemical formula Al2SiO5.The variety chiastolite commonly contains dark inclusions of carbon or clay which form a checker-board pattern when shown in cross-section....

         Al[6]Al[5]OSiO4, Kanonaite (Mn3+,Al)AlSiO5, Yoderite Mg2(Al,Fe3+)6Si4O18(OH)2
    • Kyanite
      Kyanite
      Kyanite, whose name derives from the Greek word kuanos sometimes referred to as "kyanos", meaning deep blue, is a typically blue silicate mineral, commonly found in aluminium-rich metamorphic pegmatites and/or sedimentary rock. Kyanite in metamorphic rocks generally indicates pressures higher than...

       Al[6]Al[6]OSiO4
  • Titanite group
    • Titanite
      Titanite
      Titanite, or sphene , is a calcium titanium nesosilicate mineral, CaTiSiO5. Trace impurities of iron and aluminium are typically present...

       CaTiSiO5, Malayaite
      Malayaite
      Malayaite is a calcium tin silicate mineral with formula CaSnO[SiO4]. It is a member of the titanite group.-Discovery:Malayaite was originally found in Perak and was first described in literature in 1961, though it was not yet given a name. In 1965, the mineral was named and recognized by the...

       CaSnOSiO4, Vanadomalayaite CaVOSiO4
  • Cerite Group
    • Cerite
      Cerite
      Cerite is a complex silicate mineral group containing cerium, formula 963. The cerium and lanthanum content varies with the Ce rich species and the La rich species...

      -(Ce) (Ce3+)9Fe3+(SiO4)6[(SiO3)(OH)](OH)3, Cerite-(La) (La,Ce,Ca)9(Mg,Fe3+)(SiO4)6[SiO3(OH)](OH)3, Aluminocerite-(Ce) (Ce,REE,Ca)9(Al,Fe3+)(SiO4)3[SiO3(OH)]4(OH)3
  • Silicate apatites
    • Ellestadite* Ca5(SiO4,PO4,SO4)3(F,OH,Cl), Britholite-(Ce) (Ce,Ca,Th,La,Nd)5(SiO4,PO4)3(OH,F), Britholite-(Y) (Y,Ca)5(SiO4,PO4)3(OH,F), Ellestadite-(F) Ca5(SiO4,PO4,SO4)3(F,OH,Cl), Ellestadite-(OH) Ca5(SiO4,SO4)3(OH,Cl,F), Ellestadite-(Cl) Ca5(SiO4,PO4,SO4)3(Cl,OH,F), Mattheddleite Pb20(SiO4)7(SO4)4Cl4, Karnasurtite-(Ce) (Ce,La,Th)(Ti,Nb)(Al,Fe3+)(Si,P)2O7(OH)4•3(H2O) (?), Fluorbritholite-(Ce) (Ca,Ce,La,Na)5(SiO4,PO4)3(OH,F), Fluorcalciobritholite (Ca,REE)5[(Si,P)O4]3F
  • Uranophane group
    • Kasolite Pb(UO2)SiO4•H2O, Uranophane
      Uranophane
      Uranophane Ca22·5H2O is a rare calcium uranium silicate hydrate mineral that forms from the oxidation of uranium bearing minerals. Uranophane is also known as uranotile. It has a yellow color and is radioactive....

       Ca(UO2)2SiO3(OH)2•5H2O, Sklodowskite (H3O)2Mg(UO2)2(SiO4)2•4H2O, Cuprosklodowskite
      Cuprosklodowskite
      Cuprosklodowskite is a secondary uranium mineral formed by alteration of earlier uranium minerals. Its empirical formula is Cu[]2•6. It was named in the mistaken belief that the mineral was the copper analogue of sklodowskite, which in turn was named for Marie Curie...

       Cu[(UO2)(SiO2OH)]2•6H2O, Boltwoodite
      Boltwoodite
      Boltwoodite is a hydrated potassium uranyl silicate mineral with formula HK·1.5. It is formed from the oxidation and alteration of primary uranium ores. It takes the form of a crust on some sandstones that bear uranium...

       HK(UO2)(SiO4)•1.5H2O, Natroboltwoodite (H3O)(Na,K)(UO2)SiO4•H2O, Oursinite (Co,Mg)(H3O)2[(UO2)SiO4]2•3H2O, Swamboite U7+H6(UO2)6(SiO4)6•30H2O, Uranophane-beta Ca[(UO2)SiO3(OH)]2•H2O
  • Datolite group
    • Datolite series
      • Datolite
        Datolite
        Datolite is a calcium boron hydroxide nesosilicate, CaBSiO4. It was first observed by Jens Esmark in 1806, and named by him from δατεῖσθαι, "to divide," and λίθος, "stone," in allusion to the granular structureof the massive mineral....

         CaBSiO4(OH), Hingganite-(Ce) (Ce,Ca)2([ ],Fe)Be2Si2O8[(OH),O]2, Hingganite-(Y) Y2([ ])Be2Si2O8(OH)2, Hingganite-(Yb) (Yb,Y)2([ ])Be2Si2O8(OH)2, Calcybeborosilite-(Y) (REE,Ca)2[ ](B,Be)2(SiO4)2(OH,O)2
    • Homilite series
      • Bakerite
        Bakerite
        Bakerite is the common name given to hydrated calcium boro-silicate hydroxide, a borosilicate mineral that occurs in volcanic rocks in the Baker, California area....

         Ca4B4(BO4)(SiO4)3(OH)3•H2O, Gadolinite
        Gadolinite
        Gadolinite, sometimes also known as Ytterbite, is a silicate mineral which consists principally of the silicates of cerium, lanthanum, neodymium, yttrium, beryllium, and iron with the formula 2FeBe2Si2O10...

        -(Ce) (Ce,La,Nd,Y)2Fe2+Be2Si2O10, Gadolinite-(Y) Y2Fe2+Be2Si2O10, Calciogadolinite? CaREE(Fe3+)Be2Si2O10, Homilite
        Homilite
        Homilite is a borosilicate mineral belonging to the gadolinite group of minerals with formula Ca2B2Si2O10.It occurs as brown monoclinic crystals within feldspar masses in pegmatite and was discovered in 1876 in Stoko island, Langesundfiord, Norway...

         Ca2(Fe2+,Mg)B2Si2O10, Minasgeraisite-(Y) CaY2Be2Si2O10
  • Hellandite group
    • Hellandite-(Y) (Ca,REE)4(Y,Ce)2(Al,[ ])2[Si4B4O22](OH)2
    • Tadzhikite-(Y) Ca4(Y,Ce)2(Ti,Al,Fe3+,[ ])2[Si4B4O22](OH)2
    • Tadzhikite-(Ce) Ca4(Ce,Y)2(Ti,Al,Fe3+,[ ])2[Si4B4O22](OH)2
    • Hellandite-(Ce) (Ca3REE)4Ce2Al[ ]2[Si4B4O22](OH)2
    • Mottanaite-(Ce) Ca4(Ce,Ca)2AlBe2[Si4B4O22]O2
    • Ciprianiite Ca4[(Th,U)(REE)]2(Al,[ ])2[Si4B4O22](OH,F)2
    • Piergorite-(Ce) Ca8Ce2(Al0.5(Fe3+)0.5)([ ],Li,Be)2Si6B8O36(OH,F)2
  • Vicanite group
    • Vicanite-(Ce) (Ca,Ce,La,Th)15As5+(As3+0.5,Na0.5)Fe3+Si6B4O40F7
    • Hundholmenite-(Y) (Y,REE,Ca,Na)15(Al,Fe3+)Cax(As3+)1-x(Si,As5+)Si6B3(O,F)48
    • Proshchenkoite-(Y) (Y,REE,Ca,Na,Mn)15Fe2+Ca(P,Si)Si6B3(O,F)48

"Garnet" supergroup
  • Nesosilicate insular SiO4 groups only with cations in [6] and >[6] coordination

:Category:Garnet group, X3Z2(TO4)3 (X = Ca, Fe, etc., Z = Al, Cr, etc., T = Si, As, V, etc.)
    • Pyralspite series
      • Pyrope
        Pyrope
        The mineral pyrope is a member of the garnet group. Pyrope is the only member of the garnet family to always display red colouration in natural samples, and it is from this characteristic that it gets its name: from the Greek for fire and eye. Despite being less common than most garnets, it is a...

         Mg3Al2(SiO4)3, Almandine
        Almandine
        Almandine , also known incorrectly as almandite, is a species of mineral belonging to the garnet Group. The name is a corruption of alabandicus, which is the name applied by Pliny the Elder to a stone found or worked at Alabanda, a town in Caria in Asia Minor. Almandine is an iron alumina garnet,...

         (Fe2+)3Al2(SiO4)3, Spessartine
        Spessartine
        Spessartine previously named spessartite, is a nesosilicate, manganese aluminium garnet species, Mn3Al23.The name is a derivative of Spessart in Bavaria, Germany, the type locality of the mineral. It occurs most often in granite pegmatite and allied rock types and in certain low grade metamorphic...

         (Mn2+)3Al2(SiO4)3, Knorringite
        Knorringite
        Knorringite is a mineral species belonging to the garnet group, and forms a series with the species pyrope. It was discovered in 1968 in the Kao kimberlite pipe in the Butha-Buthe District of Lesotho and is named after Oleg Von Knorring, a professor of mineralogy at the University of Leeds in...

         Mg3Cr2(SiO4)3, Majorite
        Majorite
        Majorite is a type of mineral found in the upper mantle of the Earth. Its chemical formula is Mg323. Majorite was first described from the Coorara Meteorite of Western Australia and has been reported from various other meteorites...

         Mg3(Fe,Al,Si)2(SiO4)3, Calderite
        Calderite
        Calderite is a mineral in the garnet group with the chemical formula 323.It is dark reddish brown to dark yellowish in color and generally granular massive in form....

         (Mn2+,Ca)3(Fe3+,Al)2(SiO4)3
    • Ugrandite series
      • Andradite
        Andradite
        Andradite is a species of the garnet group. It is a nesosilicate, with formula Ca3Fe2Si3O12.Andradite includes three varieties:* Melanite: Black in color, referred to as "titanian andradite"....

         Ca3(Fe3+)2(SiO4)3, Grossular
        Grossular
        Grossular or grossularite is a calcium-aluminium mineral species of the garnet group with the formula Ca3Al23, though the calcium may in part be replaced by ferrous iron and the aluminium by ferric iron. The name grossular is derived from the botanical name for the gooseberry, grossularia, in...

         Ca3Al2(SiO4)3, Uvarovite
        Uvarovite
        Uvarovite is a chromium-bearing garnet group species with the formula: Ca3Cr23. It was discovered in 1832 by Germain Henri Hess who named it after Count Sergei Semenovitch Uvarov , a Russian statesman and amateur mineral collector....

         Ca3Cr2(SiO4)3, Goldmanite
        Goldmanite
        Goldmanite is a green or greenish-brown silicate mineral of the garnet group with a chemical formula of Ca323.-Discovery:It was first described in 1964 for an occurrence in the Laguna District, Cibola County, New Mexico and is named after Marcus Isaac Goldman , an American petrologist...

         Ca3(V,Al,Fe3+)2(SiO4)3, Yamatoite? (Mn2+,Ca)3(V3+,Al)2(SiO4)3
    • Schorlomite - Kimzeyite series
      • Schorlomite Ca3(Ti,Fe 3+,Al)2[(Si,Fe3+,Fe2+)O4]3, Kimzeyite Ca3(Zr,Ti)2(Si,Al,Fe3+)3O12, Morimotoite Ca3TiFe2+Si3O12
    • Hydrogarnet
      • Hibschite Ca3Al2(SiO4)3-x(OH)4x (x=0.2-1.5), Katoite Ca3Al2(SiO4)3-x(OH)4x (x=1.5-3)
    • Tetragonal Hydrogarnet
      • Henritermierite Ca3(Mn,Al)2(SiO4)2(OH)4, Holtstamite Ca3(Al,Mn3+)2(SiO4)2(OH)4
  • Bredigite Ca7Mg(SiO4)4, Merwinite Ca3Mg(SiO4)2, Wadalite Ca6Al5Si2O16Cl3, Rondorfite Ca8Mg(SiO4)4Cl2

"Humite" supergroup
  • Nesosilicate insular SiO4 groups and O, OH, F, and H2O with cations in [6] coordination only
  • Topaz group
    • Topaz
      Topaz
      Topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO42. Topaz crystallizes in the orthorhombic system and its crystals are mostly prismatic terminated by pyramidal and other faces.-Color and varieties:...

       Al2SiO4(F,OH)2, Krieselite
      Krieselite
      Krieselite, 22 is a rare aluminium gallium germanate mineral from Tsumeb. It is a germanium-analogue of topaz....

       (Al,Ga)2(Ge,C)O4(OH)2
  • Humite
    Humite (mineral group)
    The humite group is a group of nesosilicates with the general formula Anm2.When A is predominantly magnesium we have the humite subgroup:*norbergite, Mg32*chondrodite, 522*humite, 732...

    , general formula An(SiO4)m(F,OH)2
    • Chondrodite series
      • Alleghanyite
        Alleghanyite
        Alleghanyite is a moderately rare humite mineral with formula Mn522, belonging to the nesosilicates class. In general its occurrences are related with metamorphic manganese deposits. The mineral is named after Alleghany County, North Carolina, USA....

         (Mn2+)5(SiO4)2(OH,F)2, Chondrodite
        Chondrodite
        Chondrodite is a nesosilicate mineral with formula 522. Although it is a fairly rare mineral, it is the most frequently encountered member of the humite group of minerals. It is formed in hydrothermal deposits from locally metamorphosed dolomite. It is also found associated with skarn and...

         (Mg,Fe,Ti)5(SiO4)2(F,OH,O)2, Reinhardbraunsite Ca5[(OH,F)2|(SiO4)2, Ribbeite Mn5(SiO4)2(OH)2, Kumtyubeite Ca5(SiO4)2F2
    • Humite series
      • Humite
        Humite
        Humite is a mineral found in the volcanically ejected masses of Vesuvius. It was first described in 1813 and named for Abraham Hume .-See also:* Jerrygibbsite* Chondrodite* Clinohumite* Alleghanyite...

         (Mg,Fe)7[(F,OH)2|(SiO4)3], Leucophoenicite (Mn,Ca,Mg,Zn)(SiO4)3(OH)2, Manganhumite (Mn2+,Mg)7[(OH)2|(SiO4)3, Chegemite Ca7(SiO4)3(OH)2
    • Clinohumite series
      • Clinohumite
        Clinohumite
        Clinohumite is an uncommon member of the humite group, a magnesium silicate according to the chemical formula 942. Most commonly found as tiny indistinct grains, large euhedral clinohumite crystals are sought by collectors and occasionally fashioned into bright, yellow-orange gemstones...

         (Mg,Fe2+)9[(F,OH)2|(SiO4)4], Jerrygibbsite
        Jerrygibbsite
        Jerrygibbsite is a rare silicate mineral with chemical formula: 942. Jerrygibbsite was originally discovered by Pete J. Dunn in 1984, who named it after mineralogist Gerald V. Gibbs. It has only been reported from the type locality of Franklin Furnace, New Jersey, United States, and in Namibia's...

         (Mn,Zn)9(SiO4)4(OH)2, Sonolite Mn9(SiO4)4(F,OH)2, Hydroxylclinohumite Mg9[(F,OH)2|(SiO4)4
    • Norbergite Mg3(SiO4)(F,OH)2
  • Chloritoid group
    • Chloritoid
      Chloritoid
      Chloritoid is a silicate mineral of metamorphic origin. It is an iron magnesium manganese alumino-silicate hydroxide with formula: 2Al4Si2O104. It occurs as greenish grey to black platy micaceous crystals and foliated masses. Its Mohs hardness is 6.5, unusually high for a platy mineral, and it has...

       (Fe2+,Mg,Mn)2Al4Si2O10(OH)4, Magnesiochloritoid MgAl2SiO5(OH)2, Ottrelite
      Ottrelite
      Ottrelite is a form of chloritoid. Its empirical formula is 2Al4Si2O104....

       (Mn,Fe2+,Mg)2Al4Si2O10(OH)4, Carboirite-VIII Fe2+(Al,Ge)2O[(Ge,Si)O4](OH)2

Subclass: Sorosilicates



Epidote supergroup, {A2}{M3}[O|OH|SiO4|Si2O7]
    • Epidote group
      • Clinozoisite
        Clinozoisite
        Clinozoisite is a mineral, a complex sorosilicate of calcium and aluminium and is usually a grey green colour.Its formula is Ca2Al3[O|OH|SiO4|Si2O7]....

         {Ca2}{Al3}[O|OH|SiO4|Si2O7], Clinozoisite-(Sr) CaSrAl3(Si2O7)(SiO4)O(OH), Epidote
        Epidote
        Epidote is a calcium aluminium iron sorosilicate mineral, Ca2Al2O, crystallizing in the monoclinic system. Well-developed crystals are of frequent occurrence: they are commonly prismatic in habit, the direction of elongation being perpendicular to the single plane of symmetry. The faces are often...

         {Ca2}{Al2Fe3+}[O|OH|SiO4|Si2O7], Epidote-(Pb) CaPbFe3+Al2(Si2O7)(SiO4)O(OH), Mukhinite {Ca2}{Al2V3+}[O|OH|SiO4|Si2O7], Piemontite
        Piemontite
        Piemontite is a sorosilicate mineral in the monoclinic crystal system with the chemical formula Ca23O. It is a member of the epidote group....

         {Ca2}{Al2Mn3+}[O|OH|SiO4|Si2O7], Piemontite-(Sr) {CaSr}{Al2Mn3+}[O|OH|SiO4|Si2O7], Manganipiemontite-(Sr) {CaSr}{Mn3+AlMn3+}[O|OH|SiO4|Si2O7]
    • Allanite group
      • Allanite
        Allanite
        Allanite is a sorosilicate group of minerals within the broader epidote group that contain a significant amount of rare earth elements. The mineral occurs mainly in metamorphosed clay rich sediments and felsic igneous rocks...

        -(Ce) {CaCe}{Al2Fe2+}[O|OH|SiO4|Si2O7], Allanite-(La) {CaLa}{Al2Fe2+}[O|OH|SiO4|Si2O7], Allanite-(Y) {CaY}{Al2Fe2+}[O|OH|SiO4|Si2O7], Dissakisite-(Ce) {CaCe}{Al2Mg}[O|OH|SiO4|Si2O7], Dissakisite-(La) {CaLa}{Al2Mg}[O|OH|SiO4|Si2O7], Ferriallanite-(Ce) {CaCe}{Fe3+AlFe2+}[O|OH|SiO4|Si2O7], Manganiandrosite-(Ce) (Mn2+,Ca)(Ce,REE)Mn3+AlMn2+(Si2O7)(SiO4)O(OH), Manganiandrosite-(La) {LaMn2+}{Mn3+AlMn2+}[O|OH|SiO4|Si2O7], Vanadoandrosite-(Ce) {Mn2+Ce}{V3+AlMn2+}[O|OH|SiO4|Si2O7]
    • Dollaseite group
      • Dollaseite-(Ce)
        Dollaseite-(Ce)
        Dollaseite- is a sorosilicate end-member epidote mineral, with the formula CaREE+3Mg2AlSi3O11F, where cerium is the dominant rare earth element . It also includes lanthanum, neodymium, praseodymium, samarium, and gadolinium, and since cerium is the dominant REE, it is placed in the name and...

         {CaCe}{MgAlMg}[F|OH|SiO4|Si2O7], Khristovite-(Ce) {CaCe}{MgAlMn2+}[F|OH|SiO4|Si2O7], Mills et al. (2009)

Tectosilicates without Zeolitic H2O

:Category:Quartz varieties

Feldspar family
Feldspathoid family
    • Sodalite group
      • Helvite group
  • :Category:Cancrinite group

Tectosilicates with Zeolitic H2O

Category:Zeolite group
  • Alflarsenite NaCa2Be3Si4O13(OH)•2H2O
  • Zeolites with T5O10 Units – The Fibrous Zeolites
    • Natrolite subgroup
      • Gonnardite
        Gonnardite
        Gonnardite is a comparatively rare, fibrous zeolite, natrolite subgroup. Older papers claim that a complete solid solution exists between tetranatrolite and gonnardite, but tetranatrolite was discredited as a separate species in 1999...

         (Na,Ca)2(Si,Al)5O10·3H2O, Mesolite
        Mesolite
        Mesolite is a tectosilicate mineral with formula Na2Ca23·8H2O. It is a member of the zeolite group and is closely related to natrolite which it also resembles in appearance....

         Na2Ca2Si9Al6O30·8H2O, Natrolite
        Natrolite
        Natrolite is a tectosilicate mineral species belonging to the zeolite group. It is a hydrated sodium and aluminium silicate with the formula . The type locality is Hohentwiel, Hegau, Germany....

         Na2Al2Si3O10·2H2O, Paranatrolite Na2Al2Si3O10·3H2O, Scolecite
        Scolecite
        Scolecite is a tectosilicate mineral belonging to the zeolite group; it is a hydrated calcium silicate, CaAl2Si3O10.3H2O. Only minor amounts of sodium and traces of potassium substitute for calcium. There is an absence of barium, strontium, iron and magnesium...

         CaAl2Si3O10·3H2O
    • Tetranatrolite? Na2[Al2Si3O10]•2H2O, Thomsonite
      Thomsonite
      Thomsonite is the name of a series of tecto-silicate minerals of the zeolite group. Prior to 1997, thomsonite was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed it to a series name, with the mineral species being named...

      -Sr (Sr,Ca)2Na[Al5Si5O20]•7H2O, Thomsonite-Ca NaCa2Al5Si5O20•6H2O, Kalborsite K6Al4Si6BO20(OH)4Cl, Edingtonite
      Edingtonite
      Edingtonite is a white, gray, brown, colorless, pink or yellow zeolite mineral. Its chemical formula is BaAl2Si3O10·4H2O. It has varieties with tetragonal, orthorhombic or triclinic crystals. It was named for Scottish mineral collector James Edington .-References and external links:* from...

       BaAl2Si3O10•4H2O
  • Chains of single connected 4-membered rings
    • Ammonioleucite (NH4,K)AlSi2O6, Leucite
      Leucite
      Leucite is a rock-forming mineral composed of potassium and aluminium tectosilicate K[AlSi2O6]. Crystals have the form of cubic icositetrahedra but, as first observed by Sir David Brewster in 1821, they are not optically isotropic, and are therefore pseudo-cubic. Goniometric measurements made by...

       KAlSi2O6, Analcime NaAlSi2O6•H2O, Hsianghualite
      Hsianghualite
      Hsianghualite is a tectosilicate of lithium, calcium and beryllium, with fluorine, a member of the zeolite group. It was discovered in 1958 and named for the type locality, Hsiang Hua, 香花, meaning fragrant flower.-Structure:...

       Ca3Li2Be3(SiO4)3F2, Lithosite K6Al4Si8O25•H2O, Pollucite
      Pollucite
      Pollucite is a zeolite mineral with the formula 2Al2Si4O12·2H2O with iron, calcium, rubidium and potassium as common substituting elements. It is important as a significant ore of caesium and sometimes rubidium. It forms a solid solution series with analcime. It crystallizes in the isometric -...

       (Cs,Na)2Al2Si4O12•H2O, Wairakite
      Wairakite
      Wairakite is a zeolite mineral with an analcime structure but containing a calcium ion. The chemical composition is Ca8*16H2O. It is named for the location of its discovery in North Island, New Zealand, by Alfred Steiner in 1955. The mineral has since been found in metamorphic rocks and in...

       CaAl2Si4O12•2H2O, Laumontite
      Laumontite
      Laumontite is a mineral, one of the zeolite group. Its molecular formula is 2·4H2O, a hydrated calcium-aluminium silicate. Potassium or sodium may substitute for the calcium but only in very small amounts....

       CaAl2Si4O12•4H2O, Yugawaralite CaAl2Si6O16•4H2O, Roggianite Ca2[Be(OH)2Al2Si4O13]•2.5H2O, Goosecreekite CaAl2Si6O16•5H2O, Montesommaite (K,Na)9Al9Si23O64•10H2O, Partheite
      Partheite
      Partheite or parthéite is a calcium aluminium silicate found in rodingites, metasomatically altered rocks associated with the formation of serpentinite. Partheite and lawsonite are polymorphs. It has been described from rodingite dikes within an ophiolite sequence in Turkey and in veins within a...

       Ca2Al4Si4O15(OH)2•4H2O
  • Chains of doubly connected 4-membered rings
    • Amicite
      Amicite
      Amicite has a general formula of K2Na2Al4Si4O16·5. The name is in honor or Giovan Battista Amici a physicist, optician, and inventor of microscope optical elements.-Structure and optical properties:...

       K2Na2Al4Si4O16•5H2O, Garronite Na2Ca5Al12Si20O64•27H2O, Gobbinsite (Na2,Ca)2K2Al6Si10O32•12H2O, Gismondine
      Gismondine
      Gismondine is a mineral with the chemical formula CaAl2Si2O8·4. It is a zeolite or hydrated alumino-silicate. It forms colorless, bipyramidal crystals of orthorhombic symmetry....

       Ca2Al4Si4O16•9H2O, Harmotome
      Harmotome
      Harmotome is a mineral, one of the rarer zeolites; a hydrated barium silicate with formula: 5Al5,Si11O32·12. It forms vitreous white well defined monoclinic crystals, often associated with calcite and other zeolites...

       (Ba,Na,K)(1-2)(Si,Al)8O16•6H2O, Phillipsite
      Phillipsite
      Phillipsite is a mineral of the zeolite group; a hydrated potassium, calcium and aluminium silicate, approximating to 3Al6Si10O32·12H2O. . The crystals are monoclinic, but only complex cruciform twins are known, these being exactly like twins of harmotome...

      -Na (Na,K,Ca)(1-2)(Si,Al)8O16•6H2O, Phillipsite-Ca (Ca,K,Na)(1-2)(Si,Al)8O16•6H2O, Phillipsite-K (K,Na,Ca)(1-2)(Si,Al)8O16•6H2O, Merlinoite (K,Ca,Na,Ba)7Si23Al9O64•23H2O, Mazzite-Mg K2CaMg2(Al,Si)36O72•28H2O, Mazzite-Na Na8Al8Si28O72•30H2O, Perlialite K8Tl4Al12Si24O72•20H2O, Boggsite NaCa2(Al5Si19O48)•17H2O, Paulingite
      Paulingite
      Paulingite or paulingite-K is a rare zeolite mineral that is found in vesicles in the alluvial basaltic rocks from the Columbia River near Rock Island Dam, Washington....

      -Ca (Ca,K,Na,Ba)5[Al10Si35O84]•34H2O, Paulingite-K (K2,Ca,Na2,Ba)5Al10Si35O90•45H2O, Paulingite-Na (Na2,K2,Ca,Ba)5Al10Si35O90•45H2O
  • Chains of 6-membered rings – tabular zeolites
    • Gmelinite
      Gmelinite
      Gmelinite-Na is one of the rarer zeolites but the commonest member of the gmelinite series, gmelinite-Ca, gmelinite-K and gmelinite-Na. It is closely related to the very similar mineral chabazite...

      -Ca (Ca,Na2)Al2Si4O12•6H2O, Gmelinite-K (K,Na,Ca)6(Al7Si17O48)•22H2O, Gmelinite-Na (Na2,Ca)Al2Si4O12•6H2O, Chabazite
      Chabazite
      Chabazite is a tectosilicate mineral of the zeolite group, closely related to gmelinite, with formula Al2Si4O12·6H2O. Recognized varieties include Chabazite-Ca, Chabazite-K, Chabazite-Na, and Chabazite-Sr, depending on the prominence of the indicated cation.Chabazite crystallizes in the triclinic...

      -K (K2,Ca,Na2,Mg)[Al2Si4O12]•6H2O, Chabazite-Ca (Ca0.5,Na,K)4[Al4Si8O24]•12H2O, Chabazite-Na (Na2,K2,Ca,Mg)[Al2Si4O12]•6H2O, Chabazite-Sr (Sr,Ca,K2,Na2)[Al2Si4O12]•6H2O, Herschelite? (Na,Ca,K)AlSi2O6•3H2O, Willhendersonite KCaAl3Si3O12•5H2O, Levyne
      Levyne
      Levyne or levynite is a zeolite mineral, i.e. a hydrated silicate mineral. There are two forms of levyne:*Levyne-Na, the sodium dominated form Al2Si4O12·6; and*Levyne-Ca the calcium dominated form Al2Si4O12·6...

      -Ca (Ca,Na2,K2)Al2Si4O12•6H2O, Levyne-Na (Na2,Ca,K2)Al2Si4O12•6H2O, Bellbergite (K,Ba,Sr)2Sr2Ca2(Ca,Na)4Al18Si18O72•30H2O, Erionite
      Erionite
      Erionite is a naturally occurring fibrous mineral that belongs to a group of minerals called zeolites. It usually is found in volcanic ash that has been altered by weathering and ground water. Erionite forms brittle, wool-like fibrous masses in the hollows of rock formations and has an internal...

      -Ca (Ca,K2,Na2)2[Al4Si14O36]•15H2O, Erionite-K (K2,Ca,Na2)2[Al4Si14O36]•15H2O, Erionite-Na (Na2,K2,Ca)2[Al4Si14O36]•15H2O, Wenkite Ba4Ca6(Si,Al)20O39(OH)2(SO4)3•nH2O (?), Offretite (K2,Ca,Mg)2.5Al5Si13O36•15H2O, Faujasite
      Faujasite
      Faujasite is a mineral group in the zeolite family of silicate minerals. The group consists of faujasite-Na, faujasite-Mg and faujasite-Ca. They all share the same basic formula: 3.5[Al7Si17O48]·32 by varying the amounts of sodium, magnesium and calcium...

      -Ca (Ca,Na2,Mg)3.5[Al7Si17O48]•32H2O, Faujasite-Mg (Mg,Na2,Ca)3.5[Al7Si17O48]•32H2O, Faujasite-Na (Na2,Ca,Mg)3.5[Al7Si17O48]•32H2O, Maricopaite Pb7Ca2(Si,Al)48O100•32H2O, Mordenite
      Mordenite
      Mordenite is a zeolite mineral with the chemical formula, Al2Si10O24·7H2O. It is a zeolite. According to Ullmann's Encyclopedia of Industrial Chemistry , it is one of the six most abundant zeolites and is used commercially....

       (Ca,Na2,K2)Al2Si10O24•7H2O, Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96•25H2O, Dachiardite-Na (Na2,Ca,K2)4Al4Si20O48•13H2O, Epistilbite CaAl2Si6O16•5H2O, Ferrierite
      Ferrierite
      The ferrierite group of zeolite minerals consists of three very similar species: ferrierite-Mg, ferrierite-Na, and ferrierite-K, based on the dominant cation in the A location. Ferrierites are orthorhombic minerals with highly variable cationic composition, 2Mg18O36·9H2O. Calcium and other ions...

      -K (K,Na)2Mg(Si,Al)18O36•9H2O, Ferrierite-Mg (Mg,Na,K)2Mg(Si,Al)18O36•9H2O, Ferrierite-Na (Na,K)2Mg(Si,Al)18O36•9H2O, Bikitaite Li2[Al2Si4O12]•2H2O
  • Chains of T10O20 Tetrahedra
    • Clinoptilolite
      Clinoptilolite
      Clinoptilolite is a natural zeolite comprising a microporous arrangement of silica and alumina tetrahedra. It has the complex formula: 2-3Al32Si13O36·12. It forms as white to reddish tabular monoclinic tectosilicate crystals with a Mohs hardness of 3.5 to 4 and a specific gravity of 2.1 to 2.2...

      -Na (Na,K,Ca)(2-3)Al3(Al,Si)2Si13O36•12H2O, Clinoptilolite-K (Na,K,Ca)(2-3)Al3(Al,Si)2Si13O36•12H2O, Clinoptilolite-Ca (Ca,Na,K)(2-3)Al3(Al,Si)2Si13O36•12H2O, Heulandite
      Heulandite
      Heulandite is the name of a series of tecto-silicate minerals of the zeolite group. Prior to 1997, heulandite was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed it to a series name, with the mineral species being named:*...

      -Ba (Ba,Ca,K,Na,Sr)5Al9Si27O72•22H2O, Heulandite-Ca (Ca,Na)(2-3)Al3(Al,Si)2Si13O36•12H2O, Heulandite-K (K,Na,Ca)(2-3)Al3(Al,Si)2Si13O36•12H2O, Heulandite-Na (Na,Ca)(2-3)Al3(Al,Si)2Si13O36•12H2O, Heulandite-Sr (Sr,Na,Ca)(2-3)Al3(Al,Si)2Si13O36•12H2O, Stilbite
      Stilbite
      Stilbite is the name of a series of tectosilicate minerals of the zeolite group. Prior to 1997, stilbite was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed it to a series name, with the mineral species being named:*...

      -Ca NaCa4[Al8Si28O72]•nH2O (n=28-32), Stilbite-Na Na3Ca3[Al8Si28O72]•nH2O (n=28-32), Barrerite
      Barrerite
      Barrerite is a tectosilicate mineral and a member of the zeolite family. It is one of the rarer zeolites and found only at Rocky Pass, Kuiu Island, Alaska. It was named for Richard Maling Barrer , a British teacher born in New Zealand....

       (Na,K,Ca)2Al2Si7O18•6H2O, Stellerite
      Stellerite
      Stellerite has a general formula of CaAl2Si7O18]·7H2O. It is named after Georg Wilhelm Steller who was a German explorer and zoologist that discovered it. Like most rare minerals, there aren’t many commercial uses for stellerite yet. Mineral collectors are lucky to find it in good enough crystal...

       CaAl2Si7O18•7H2O, Brewsterite
      Brewsterite
      Brewsterite is the name of a series of tectosilicate minerals of the zeolite group. Prior to 1997, brewsterite was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed it to a series name, with the mineral species being named...

      -Ba (Ba,Sr)Al2Si6O16•5H2O, Brewsterite-Sr (Sr,Ba)Al4Si12O32•10H2O
  • Other Rare Zeolites
    • Terranovaite (Na,Ca)8(Si68Al12)O160•29H2O, Gottardiite Na3Mg3Ca5Al19Si117O272•93H2O, Lovdarite K2Na6Be4Si14O36•9H2O, Gaultite Na4Zn2Si7O18•5H2O, Chiavennite CaMnBe2Si5O13(OH)2•2H2O, Tschernichite (Ca,Na)(Si6Al2)O16•(4-8)H2O, Mutinaite Na3Ca4Si85Al11O192•60H2O, Tschortnerite Ca4(Ca,Sr,K,Ba)3Cu3(OH)8[Si12Al12O48]•xH2O, x>=20, Thornasite Na12Th3[Si8O19]4•18H2O, Direnzoite NaK6MgCa2(Al13Si47O120)•36H2O
  • Unclassified zeolites
    • Cowlesite CaAl2Si3O10•(5-6)H2O, Mountainite (Ca,Na2,K2)2Si4O10•3H2O

See also

  • Classification of minerals - Non silicates
    Classification of minerals - Non silicates
    This list gives an overview of the classification of minerals and includes mostly IMA recognized minerals and its groupings. This list complements the alphabetical list on List of minerals and List of minerals. Rocks, ores, mineral mixtures, not IMA approved minerals, not named minerals are...

  • List of rock types
  • Crystal system
    Crystal system
    In crystallography, the terms crystal system, crystal family, and lattice system each refer to one of several classes of space groups, lattices, point groups, or crystals...

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