ultramafic

Contents

EnglishEdit

EtymologyEdit

ultra- +‎ mafic

AdjectiveEdit

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

• ultrabasic

NounEdit

ultramafic (plural ultramafics)

1. A rock with such properties.