Alluaivite is an exceedingly rare mineral of the eudialyte group

Eudialyte group

Eudialyte group is a group of complex trigonal zircono- and, more rarely, titanosilicate minerals with general formula [NNNNN]3[MM]3M3MZ3[Si24O72]O'4X2, where N and N and N and N = Na+ and more rarely H3O+ or H2O, N = Na+, Sr2+, Mn2+ and more rarely H3O+ or H2O or K+ or Ca2+ or REE3+ , M...

, with complex formula written as Na₁₉(Ca,Mn)₆(Ti,Nb)₃Si₂₆O₇₄Cl·2H₂O. It is unique among the eudialyte group as the only titanosilicate (other representatives of the group are usually zirconosilicates). It is named after Mt. Alluaiv in Lovozero

Lovozero

Lovozero may refer to:*Lovozero Massif, a mountain range in the center of Kola Peninsula, Russia*Lake Lovozero, a lake in Murmansk Oblast, Russia*Lovozero , a rural locality in Murmansk Oblast, Russia...

 Tundry massif

Massif

In geology, a massif is a section of a planet's crust that is demarcated by faults or flexures. In the movement of the crust, a massif tends to retain its internal structure while being displaced as a whole...

, Kola Peninsula

Kola Peninsula

The Kola Peninsula is a peninsula in the far northwest of Russia. Constituting the bulk of the territory of Murmansk Oblast, it lies almost completely to the north of the Arctic Circle and is washed by the Barents Sea in the north and the White Sea in the east and southeast...

, Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

, where it is found in ultra-agpaitic, hyperalkaline pegmatites.

External links

• The Nomenclature of the Eudialyte-group minerals