igneous
Granite
Phaneritic felsic intrusive igneous rock
AI-generated identification · may be incorrectHardness of 6 on the Mohs scale. Composed primarily of quartz, alkali feldspar, and plagioclase with dark biotite mica.
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Physical properties
Hardness of 6 on the Mohs scale. Composed primarily of quartz, alkali feldspar, and plagioclase with dark biotite mica.
Formation & geological history
Formed from the slow cooling of silica-rich magma deep underground, occurring over millions of years.
Uses & applications
Widely used in commercial construction, kitchen countertops, monuments, and architectural facings.
Geological facts
Granite makes up a major part of Earth's continental crust and is exceptionally resistant to weathering.
Field identification & locations
Identified by visible interlocking mineral crystals of quartz, pink or white feldspar, and dark flakes.
