ADAMANTINE

ADAMANT'INE, adjective Made of adamant; having the qualities of adamant; that cannot be broken, dissolved, or penetrated, as adamantine bonds, or chains.Adamantine Spar, a genus of earths, of three varieties. The color of the first is gray, with shades of brown or green; the form when regular, a hexangular prism, two sides large and four small, without a pyramid; its surface striated, and with a thin covering of white mica, interspersed with particles of red felspar; its fracture, foliaceous and sparry. The second variety is whiter, and the texture more foliaceous. The third variety is of a reddish brown color. This stone is very hard, and of difficult fusion.A variety of corrundum.

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adamantine. adamantine, as hard as Diamont

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adamantine. Adamantine, a. made of or like adamant, hard

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Ad′a‐man″tine (�), a. [[L. adamantinus, Gr. �.]] 1. 1. Made of adamant, or having the qualities of adamant; incapable of being broken, dissolved, or penetrated; as, adamantine bonds or chains.
2. 2. (Min.) Like the diamond in hardness or luster.