ultramafic

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English[edit]

Etymology[edit]

ultra- +‎ mafic

Adjective[edit]

English Wikipedia has an article on:
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.

Synonyms[edit]

Noun[edit]

ultramafic (plural ultramafics)

  1. A rock with such properties.
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