peridotite

Other forms: peridotites

Definitions of peridotite
  1. noun
    a dark coarse-grained igneous rock consisting principally of olivine
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    types:
    kimberlite
    a rare type of peridotite that sometimes contains diamonds; found in South Africa and Siberia
    type of:
    igneous rock
    rock formed by the solidification of molten magma
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