Kegelite is a complex silicate mineral with formula Pb₈Al₄Si₈O₂₀(SO₄)₂(CO₃)₄(OH)₈.

It was first described in 1975 for an occurrence in the Tsumeb Mine, Tsumeb

Tsumeb

Tsumeb is a city of 15,000 inhabitants and the largest town in Oshikoto region in northern Namibia. Tsumeb is the home of the world-famous Tsumeb mine, and the "gateway to the north" of Namibia. It is the closest town to the Etosha National Park...

, Otjikoto Region, Namibia

Namibia

Namibia, officially the Republic of Namibia , is a country in southern Africa whose western border is the Atlantic Ocean. It shares land borders with Angola and Zambia to the north, Botswana to the east and South Africa to the south and east. It gained independence from South Africa on 21 March...

 and named for Frederick Wilhelm Kegel

Frederick Wilhelm Kegel

Friedrich Wilhelm Kegel , from 1922 to 1938 director of the of mining operations at Tsumeb mine, Namibia.The mineral Kegelite, discovered in the Tsumeb mine, was named after him.Kegel took the first published photograph of the Hoba meteorite....

 (?{1948), Director of mining operations at Tsumeb.
It occurs in a deeply oxidized polymetallic ore

Ore

An ore is a type of rock that contains minerals with important elements including metals. The ores are extracted through mining; these are then refined to extract the valuable element....

 deposits in Tsumeb. Associated minerals include quartz

Quartz

Quartz is the second-most-abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2. There are many different varieties of quartz,...

, galena

Galena

Galena is the natural mineral form of lead sulfide. It is the most important lead ore mineral.Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms...

, mimetite

Mimetite

Mimetite, whose name derives from the Greek Μιμητής mimethes, meaning "imitator", is an arsenate mineral which forms as a secondary mineral in lead deposits, usually by the oxidation of galena and arsenopyrite. The name is a reference to mimetite's resemblance to the mineral pyromorphite...

, hematite

Hematite

Hematite, also spelled as haematite, is the mineral form of iron oxide , one of several iron oxides. Hematite crystallizes in the rhombohedral system, and it has the same crystal structure as ilmenite and corundum...

, leadhillite

Leadhillite

Leadhillite is a lead sulfate carbonate hydroxide mineral, often associated with anglesite. It has the formula Pb4SO422.Leadhillite crystallizes in the monoclinic system, but forms pseudo-hexagonal forms due to crystal twinning. It forms transparent to translucent variably colored adamantine crystals...

, anglesite

Anglesite

Anglesite is a lead sulfate mineral with the chemical formula PbSO4. It occurs as an oxidation product of primary lead sulfide ore, galena. Anglesite occurs as prismatic orthorhombic crystals and earthy masses, and is isomorphous with barite and celestine. It contains 74% of lead by mass and...

, fleischerite, melanotekite and alamosite

Alamosite

Alamosite is a colorless silicate mineral named after the place where it was discovered, Álamos, Sonora, Mexico. It is a rare secondary mineral occurring in the oxidized zones of lead-rich deposits. For example, the infobox picture shows its association with black leadhillite....

. It has also been reported from the Zeehan district in Tasmania

Tasmania

Tasmania is an Australian island and state. It is south of the continent, separated by Bass Strait. The state includes the island of Tasmania—the 26th largest island in the world—and the surrounding islands. The state has a population of 507,626 , of whom almost half reside in the greater Hobart...

 and from Tune

Tune, Norway

Tune is a former municipality in Østfold county, Norway. The former municipality originally covered the current Sarpsborg municipality with the exception of Skjeberg and with the addition of Rolvsøy.-History:...

, Sarpsberg, Østfold

Østfold

is a county in southeastern Norway, bordering Akershus and southwestern Sweden , while Buskerud and Vestfold is on the other side of the bay. The seat of the county administration is Sarpsborg, and Fredrikstad is the largest city.Many manufacturing facilities are situated here. Moss and...

, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

.