mafic
5 letters · adjective · scores 800 in SpellHuntr
adjective
Describing rocks, such as silicate minerals, magmas, and volcanic and intrusive igneous rocks, which contain relatively high concentrations of magnesium and iron.
Mafic in a sentence
Much of the southern half of the southeastern body is a mafic syenite, slightly more felsic than the shonkinite.
As a whole, rocks of this type are referred to as mafic, because of the importance of magnesium and iron in their composition.
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