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Definition of Ultramafic
1. Adjective. (geology) 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. ¹
¹ Source: wiktionary.com
Definition of Ultramafic
1. [adj]
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1. Adjective. (geology) 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. ¹
¹ Source: wiktionary.com
1. [adj]