mafic
Pronunciation:
/ˈmafɪk//ˈmeɪfɪk/noun
Definitions
A rock with such properties.
adjective
Definitions
Describing rocks, such as silicate minerals, magmas, and volcanic and intrusive igneous rocks, which contain relatively high concentrations of magnesium and iron.
Synonyms:basicferromagnesicAntonyms:acidicfelsic