eclogite
[ek-luh-jahyt]
- a rock consisting of a granular aggregate of green pyroxene and red garnet, often containing kyanite, silvery mica, quartz, and pyrite.
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Origin of eclogite
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
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Historical Examples
Eclogite, ek′loj-īt, n. a crystalline rock, composed of smaragdite and red garnet.
Omphacite, om′fa-sīt, n. a grass-green granular variety of pyroxene, one of the constituents of eclogite.
In the Newlands boulder the diamonds have the appearance of being an original constituent of the eclogite.
Some regard the eclogite boulders as derived from deep-seated crystalline rocks, others as concretions in the blue ground.
eclogite
- a rare coarse-grained basic rock consisting principally of garnet and pyroxene. Quartz, feldspar, etc, may also be present. It is thought to originate by metamorphism or igneous crystallization at extremely high pressure
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Word Origin
C19: from Greek eklogē a selection
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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eclogite
[ĕk′lə-jīt′]
- A greenish, coarse-grained metamorphic rock consisting of pyroxene, quartz, and feldspar with large red garnet inclusions. Eclogites form under conditions of high pressure and moderate to high temperatures.
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The American Heritage® Science Dictionary
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