igneous
Granite
Felsic intrusive igneous rock
Hardness of 6 on the Mohs scale, colors range from pink to gray depending on mineral composition, phaneritic (coarse-grained) crystal structure, dull to vitreous luster, specific gravity around 2.65 - 2.75.
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Physical properties
Hardness of 6 on the Mohs scale, colors range from pink to gray depending on mineral composition, phaneritic (coarse-grained) crystal structure, dull to vitreous luster, specific gravity around 2.65 - 2.75.
Formation & geological history
Formed from the slow cooling and crystallization of magma rich in silica and alkali aluminosilicates beneath the Earth's surface, typically over millions of years.
Uses & applications
Widely used in construction, architecture, countertops, monument building, and decorative aggregate.
Geological facts
Granite is a major component of the continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its visibly speckled, interlocking mineral crystals of quartz, feldspar, and mica. Found abundantly in continental shields and mountain ranges worldwide.
