igneous
Granite
Intrusive Igneous Rock (composed mainly of quartz, alkali feldspar, and plagioclase)
Hardness of 6-7 on the Mohs scale, colors range from pink to gray depending on feldspar content, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity of 2.65-2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, colors range from pink to gray depending on feldspar content, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity of 2.65-2.75.
Formation & geological history
Formed from the slow cooling and crystallization of magma beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction, monuments, countertops, flooring, and decorative architectural stone.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its interlocking, visible mineral crystals of quartz, feldspar, and dark micas. Found globally in major mountain ranges and continental shields.
