Diorite
Diorite is an intermediate intrusive rock which is gray to dark-gray or black and composed principally of plagioclase feldspar, biotite, and hornblende or pyroxene.
Type
Rock
Mineral Classification
Intrusive Igneous Rock
Color
Gray/Black mix
Description
Diorite is an intermediate intrusive rock which is gray to dark-gray or black and composed principally of plagioclase feldspar, biotite, and hornblende or pyroxene.
Uses
It is still used today in masonry, stonework and as a building material.
