eclogite

eclogite

[ek-luh-jahyt]
noun
a rock consisting of a granular aggregate of green pyroxene and red garnet, often containing kyanite, silvery mica, quartz, and pyrite.

Origin:
1815–25; < Greek eklog() selection (see eclogue) + -ite1

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World English Dictionary
eclogite (ˈɛkləˌdʒaɪt)
 
n
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
 
[C19: from Greek eklogē a selection]

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American Heritage
Science Dictionary
eclogite   (ěk'lə-jīt')  Pronunciation Key 
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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