eclogite

[ ek-luh-jahyt ]

noun

1. a rock consisting of a granular aggregate of green pyroxene and red garnet, often containing kyanite, silvery mica, quartz, and pyrite.

eclogite

/ ˈɛkləˌdʒaɪt /

noun

1. 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

eclogite

/ ĕk′lə-jīt′ /

1. 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.

Word History and Origins

Origin of eclogite¹

1815–25; < Greek eklog ( ḗ ) selection ( eclogue ) + -ite ¹

Word History and Origins

Origin of eclogite¹

C19: from Greek eklogē a selection

Example Sentences

Searching for that eclogite metamorphic rock, and listening to Coltrane as you turn the bend.

From Los Angeles Times

If the plume is rich in a mineral called eclogite, which is denser than typical mantle materials, it will stall as it reaches a depth of about 400 kilometres.

From Nature

Cyanite is a characteristic mineral of the metamorphic crystalline rocks—gneiss, schist, granulite and eclogite—and is often associated with garnet and staurolite.

From Project Gutenberg

Eclogite, ek′loj-īt, n. a crystalline rock, composed of smaragdite and red garnet.

From Project Gutenberg

With omphacite and smaragdite, garnet forms the peculiar rock called eclogite.

From Project Gutenberg