omphacite A rare clinopyroxene of isolated composition (Ca,Na)(Mg,Fe2+,Fe3+,A1) [Si2O6] and with similar properties to jadeite and augite; sp. gr. 3.16–3.43; hardness 5–6; green to dark green; massive or granular; occurs in eclogites at high temperatures and pressures in association with pyrope garnet.
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Green Turtle , green turtle (Chelonia mydas) See CHELONIIDAE. Chelonia mydas (green turtle) See CHELONIIDAE. William Green , green / grēn/ • adj. 1. of the color between blue and yellow in the spectrum; colored like grass or emeralds: the leaves are bright green. ∎ consisti… Chrysoberyl , chrysoberyl Mineral, BeAl2O4; sp. gr. 3.5–3.8; hardness 8.5; orthorhombic; various shades of green or greenish-yellow; white streak; vitreous lustre;… Nathanael Greene , GREENE, NATHANAEL. (1742–1786). Continental general. Rhode Island. The American who emerged from the Revolution with a military reputation second onl… Dennis Green , Green, Dennis 1949– Football coach Dennis Green assumed head coaching responsibilities for the Minnesota Vikings early in 1992. Only the second black… Jadeite , jadeite Isolated, rare mineral of the clinopyroxenes with the composition NaAlSi2O6; sp. gr. 3.2–3.4; hardness 6; granular crystals or massive; jade…
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