Augite

Augite is a common rock-forming single chain inosilicate mineral with formula (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6. The crystals are monoclinic and prismatic. Augite has two prominent cleavages, meeting at angles near 90 degrees. ==Characteristics== Augite is a solid solution in the pyroxene group. Diopside and hedenbergite are important endmembers in a...
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Augite

• (n.) 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.
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augite

noun dark-green to black glassy mineral of the pyroxene group containing large amounts of aluminum and iron and magnesium
Found on https://www.encyclo.co.uk/local/20974

Augite

Au'gite (a'jīt) noun [ Latin augites , Greek a'ygi`ths , from a'ygh` brightness: confer French 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 pyro...
Found on http://www.encyclo.co.uk/webster/A/145

augite

A pyroxene, a complex aluminous silicate of calcium, iron, and magnesium, crystallizing in the monoclinic system, and occurring in many igneous rocks, particularly those of basaltic composition. Augite is a part of a solid solution series, which also includes the minerals hedenbergite and diopside.
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Augite

Augite is an important rock forming mineral of the pyroxene group. Chiefly found in dark coloured igneous rocks, especially those whose magmas were rich in iron, calcium and magnesium. Seldom found in rocks that contain much quartz. A common member of the pyroxene group. Told from the amphibole group by cleavage. It has the formulae (Ca,Na) (Mg,Fe,...
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augite

the most common pyroxene mineral (a silicate of calcium, magnesium, iron, titanium, and aluminum). It occurs chiefly as thick, tabular crystals in ... [4 related articles]
Found on http://www.britannica.com/eb/a-z/a/123

augite

[n] - dark-green to black glassy mineral of the pyroxene group containing large amounts of aluminum and iron and magnesium
Found on http://www.webdictionary.co.uk/definition.php?query=augite
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