Word Study
augite
CIDE DICTIONARY
augite, n. [L. augites, Gr. a'ygi`ths, fr. a'ygh` brightness: cf. F. augite.].
A variety of pyroxene, usually of a black or dark green color, occurring in igneous rocks, such as basalt; -- also used instead of the general term pyroxene . [1913 Webster]
OXFORD DICTIONARY
augite, n. Mineral. a complex calcium magnesium aluminous silicate occurring in many igneous rocks.
Etymology
L augites f. Gk augites f. auge lustre
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