peridotite

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[edit] English

Peridodite

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Peridotite

Wikipedia

From peridot +‎ -ite.

peridotite (plural peridotites)

(geology, mineralogy) A rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle.
- 2004, Richard Fortey, The Earth, Folio Society 2011, p. 60:
  
  Varieties of peridotite are distinguished by their mineral composition; for example, dunite is a peridotite which is virtually all olivine, and a dense, dark green in colour.

rock