mafic

mafic englanniksi

1. Describing rocks, such as silicate minerals, magmas, and volcanic and intrusive igneous rocks, which contain relatively high concentrations of magnesium and iron.

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(ant)

2. {{quote-text|en|year=2004|author=Richard Fortey|title=The Earth|page=60|publisher=Folio Society|year_published=2011

3. A rock with such properties.