mafic

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English[edit]

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Etymology[edit]

Blend of magnesium and ferric.

Pronunciation[edit]

Adjective[edit]

mafic (comparative more mafic, superlative most mafic)

  1. (geology) Describing rocks, such as silicate minerals, magmas, and volcanic and intrusive igneous rocks, which contain relatively high concentrations of magnesium and iron.
    • 2004, Richard Fortey, The Earth, Folio Society 2011, p. 60:
      As a whole, rocks of this type are referred to as mafic, because of the importance of magnesium and iron in their composition.

Derived terms[edit]

Synonyms[edit]

Antonyms[edit]

Noun[edit]

mafic (plural mafics)

  1. A rock with such properties.