igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale, typically colored pink, white, gray, or black with a phaneritic (coarse-grained) texture. Composed mainly of quartz, alkali feldspar, and plagioclase, with micas and amphiboles. Specific gravity is approximately 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale, typically colored pink, white, gray, or black with a phaneritic (coarse-grained) texture. Composed mainly of quartz, alkali feldspar, and plagioclase, with micas and amphiboles. Specific gravity is approximately 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling and solidification of magma deep beneath the Earth's surface, occurring over millions of years.
Uses & applications
Widely used in construction, dimension stone, countertops, monuments, and curbing due to its durability and aesthetic appeal.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally resistant to weathering and erosion.
Field identification & locations
Easily identified in the field by its interlocking, visible mineral crystals, particularly the distinct pink or white feldspar grains mixed with dark minerals like biotite mica or hornblende. Found globally in continental shields and mountain ranges.
