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Webster 1913 Edition


Adamantine

Adˊa-man′tine

,
Adj.
[L.
adamantinus
, Gr. [GREEK].]
1.
Made of adamant, or having the qualities of adamant; incapable of being broken, dissolved, or penetrated;
as,
adamantine
bonds or chains
.
2.
(Min.)
Like the diamond in hardness or luster.

Webster 1828 Edition


Adamantine

ADAMANT'INE

,
Adj.
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.