Kammererita
Kammererita is a mineral with formula Mg5(Al,Cr)2Si3O10(OH)8, in the Silicatos (Filosilicatos) group. This specimen comes from Kop Krom, Kop Daglari, Aşkale, Erzurum, Turquía and joined the Terrium collection in 1965.
Description
Electric magenta kammererite on dark matrix. Main crystal 5 mm on a druse of smaller crystals. Crystals stand in relief and show sparkle, with well-defined faces.
History of this specimen
Comes from a German collection, 1960–70.
About Kammererita
Kammererite is the chromium-rich variety of clinochlore.
About the locality
Kop Krom is the classic locality for well-crystallised kammererite on chromite.
Technical data
- Catalogue No.
- 0674
- Composition
- Mg5(Al,Cr)2Si3O10(OH)8
- Name
- Kammererita
- Group
- Silicatos (Filosilicatos)
- Matrix
- cromita
- Mine
- Kop Krom
- District / Municipality
- Kop Daglari
- Province
- Aşkale
- Region
- Erzurum
- Country
- Turquía
- Acquired
- 1965
- Ex-collection
- Coleccionista alemán
- Etymology
- Named in honour of August Alexander Kämmerer (1789–1849), a Russian-German chemist and mineralogist.
- Quality
- Muy buena
- Value trend
- Al alza