igneous
Granite
Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)
Hardness of 6-7 on the Mohs scale, colors range from pink to gray depending on its chemistry, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 to 2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, colors range from pink to gray depending on its chemistry, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 to 2.75.
Formation & geological history
Formed from the slow crystallization of magma below Earth's surface over millions of years, commonly associated with continental crust and mountain-building processes.
Uses & applications
Widely used in construction, countertops, monuments, floor tiles, and architectural facing stone.
Geological facts
Granite is the most common rock of Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its speckled pink, white, and black interlocking mineral crystals. Found globally in continental shields and mountain ranges.
