Adamantine spar

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This article is about the real mineral. For mythological and fictional substances of a similar name, see Adamant. For the type of mineral lustre, see Adamantine lustre.

Adamantine spar is a silky brown variety of corundum. It has a hardness of 9 on the Mohs scale.[1]

See also

References

  1. ^ "Adamantine Spar". Archived from the original on 18 October 2007. Retrieved September 15, 2007.


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