Peridotite meaning

pĕr'ĭ-dō-tīt', pə-rĭd'ə-
Any of various coarse-grained igneous rocks that consist mainly of olivine and pyroxene and are believed to be a main constituent of the earth's mantle.
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Any of several coarsegrained, dark igneous rocks consisting mainly of olivine and other ferromagnesian minerals.
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A coarse-grained igneous rock that consists mainly of olivine and pyroxene. It is believed to be one of the main constituent rocks of the Earth's mantle.
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(geology, mineralogy) A rock consisting of small crystals of olivine, pyroxene and hornblende; the major constituent of the Earth's mantle.
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Origin of peridotite

  • From peridot +"Ž -ite.
    From Wiktionary