ultramafic
noun
Definitions
A rock with such properties.
adjective
Definitions
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.
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Definitions
A rock with such properties.
Definitions
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.