diorite definition

diorite means an igneous rock that is of a "salt and pepper" appearance and is composed primarily of sodium/calcium feldspar and mafic minerals with little or no quartz;
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diorite means a grey to dark grey intermediate intrusive igneous rock composed principally of plagioclase feldspar, biotite, hornblende, and/or pyroxene.
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diorite means an igneous rock formed by the solidification of molten material (magma).
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More Definitions of diorite

diorite means a speckled, coarse-grained igneous rock consisting essentially of plagioclase, feldspar, and hornblende or other mafic minerals;
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diorite means a group of plutonic rocks intermediate in composition between acidic and basic rocks.
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