peridotite

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English

Peridotite
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Etymology

From peridot +‎ -ite.

Pronunciation

  • (UK) IPA(key): /ˈpɛɹ.ɪ.dəˌtaɪt/
  • (US) IPA(key): /pəˈɹɪd.əˌtaɪt/, /ˈpɛɹ.ɪ.doʊˌtaɪt/

Noun

peridotite (countable and uncountable, plural peridotites)

  1. (geology) 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, published 2011, page 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.

Translations