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;
diorite means a grey to dark grey intermediate intrusive igneous rock composed principally of plagioclase feldspar, biotite, hornblende, and/or pyroxene.
diorite means an igneous rock formed by the solidification of molten material (magma).
More Definitions of diorite
diorite means a speckled, coarse-grained igneous rock consisting essentially of plagioclase, feldspar, and hornblende or other mafic minerals;
diorite means a group of plutonic rocks intermediate in composition between acidic and basic rocks.