Adamantine spar
Appearance
(Redirected from Adamantine Spar)
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.