Bluish black needles of holmquistite in a greenish black magnetite-rich skarn. From the type locality
BO_286
1 Item
Data sheet
- Locality
- Utö mines, Södermanland, Sweden
- Size category
- Miniature
- Size (cm)
- 4 x 4 x 3.5
- Weight
- 87 g
- Formula
- ☐[Li2][Mg3Al2](Si8O22)(OH)2
- Properties
- Vitreous; needle-like crystals; bluish black lustre