A couple of black octahedrons with stepped or knobbly surfaces on quartz, with traces of bladed bertrandite and yellow muscovite
AN_386
1 Item
Data sheet
- Locality
- Akchatau, Karaganda Region, Kazakhstan
- Size category
- Small miniature
- Size (cm)
- 4 x 2.8 x 2
- Weight
- 19 g
- Formula
- CaF2
- Properties
- Black; dull; octahedral habit