Last modified on 27 May 2014, at 23:16

ultramafic

EnglishEdit

EtymologyEdit

ultra- +‎ mafic

AdjectiveEdit

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Wikipedia

ultramafic (comparative more ultramafic, superlative most ultramafic)

  1. (geology) Describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the Earth’s mantle.

SynonymsEdit

NounEdit

ultramafic (plural ultramafics)

  1. A rock with such properties.