Adamantine spar
Variety of corundum
From Wikipedia, the free encyclopedia
Adamantine spar is a silky brown variety of corundum. It has a hardness of 9 on the Mohs scale.[1]
| Adamantine spar | |
|---|---|
| General | |
| Category | Minerals |
| Formula | Al2O3 |
| Identification | |
| Color | Brown |
| Mohs scale hardness | 9 |
| Luster | Silky |
