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augite
[ aw-jahyt ]
noun
- a silicate mineral, chiefly of calcium, magnesium, iron, and aluminum: a dark-green to black variety of monoclinic pyroxene, characteristic of basic rocks.
augite
/ ɔːˈɡɪtɪk; ˈɔːɡaɪt /
noun
- a black or greenish-black mineral of the pyroxene group, found in igneous rocks. Composition: calcium magnesium iron aluminium silicate. General formula: (Ca,Mg,Fe,Al)(Si,Al) 2 O 6 . Crystal structure: monoclinic
augite
/ ô′jīt′ /
- A glassy, dark-green to black variety of pyroxene. Chemical formula: (Ca,Na)(Mg,Fe,Al)(Si,Al) 2 O 6 .
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Derived Forms
- augitic, adjective
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Other Words From
- au·git·ic [aw-, jit, -ik], adjective
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Word History and Origins
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Word History and Origins
Origin of augite1
C19: from Latin augītēs, from Greek, from augē brightness
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Example Sentences
With the exception of quartz and augite, these names are, however, representatives of different classes of minerals.
From Project Gutenberg
In the same flow hypersthene-andesite may occur in one portion, while in close proximity the lava is an augite-andesite.
From Project Gutenberg
In the more basic phases anhedrons of augite and of olivine appear, and magnetite grains are usually present.
From Project Gutenberg
On the spurs west of Nisqually Glacier the andesites contain both pyroxenes, the augite being somewhat the more important.
From Project Gutenberg
Below this were strata of trachitic breccia and augite; the formation was then seamy to an unknown depth.
From Project Gutenberg
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