Clusters of prismatic, black and shiny ilvaite associated with epidote and aegirine in a feldspar matrix
BO_615
1 Item
Data sheet
- Locality
- Ilvaite occurrence, Kangerluarsuk, Ilimaussaq, Greenland
- Size category
- Miniature
- Size (cm)
- 5.5 x 5 x 2
- Formula
- Ca(Fe2+)2Fe3+
- Properties
- Vitreous; black; lustrous