Definition
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Etymology
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Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals
From any intrusive igneous rock, having a majority of carbonate minerals
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar,biotite, hornblende, and pyroxene
From early 19th century coined in French, formed irregularly from Greek diorizein distinguish
Coarse Grained Rock, Medium Grained Rock, Opaque Rock