// Workers AI · dad joke modeWhat did Adamantine spar say? "I'm a rock-solid friend.
(Redirected from Adamantine Spar)
| Adamantine spar | |
|---|---|
| General | |
| Category | Minerals |
| Formula | Al2O3 |
| Identification | |
| Color | Brown |
| Mohs scale hardness | 9 |
| Luster | Silky |
Adamantine spar is a silky brown variety of corundum. It has a hardness of 9 on the Mohs scale.[1]
See also
[edit]References
[edit]- ↑ "Adamantine Spar". Archived from the original on 18 October 2007. Retrieved September 15, 2007.
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