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peridotite |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Peridotite \Per"i*do*tite\, n. [Cf. F. p['e]ridotite.] (Min.) An eruptive rock characterized by the presence of chrysolite (peridot). It also usually contains pyroxene, enstatite, chromite, etc It is often altered to serpentine. Note: The chief diamond deposits in South Africa occur in a more or less altered peridotite.
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