adamant defined in 1939 yearadamant - Adamant (Gr. a, not; damaein, to tame);
adamant - Word applied in the 3rd century b.c. to the emery stone of Naxos, then the hardest known crystalline stone. It was long a synonym for the lode-stone, and among scientists for the diamond. The term adamantine lustre is applied to the high refractive and dispersing properties of the diamond. Adamantine spar is a semi-transparent, light brown corundum, which exhibits the phenomena of asterism or a cluster of stars.
near adamant in Knolik
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