igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale; color varies from pink, white, grey to dark green; luster is dull to vitreous in polished form; massive to granular crystal structure; specific gravity ranges from 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale; color varies from pink, white, grey to dark green; luster is dull to vitreous in polished form; massive to granular crystal structure; specific gravity ranges from 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling and solidification of magma below the Earth's surface, typically over millions of years.
Uses & applications
Commonly used in construction, countertops, monuments, architectural facing, and decorative items.
Geological facts
Granite is one of the most abundant rocks in the Earth's continental crust and is often found forming the roots of mountain ranges.
Field identification & locations
Easily identified by its interlocking, visible mineral crystals (quartz, feldspar, and mica). Found worldwide in shields and orogenic belts.
