igneous
Granite
Intrusive igneous rock
Hardness of 6-7 on the Mohs scale, colors ranging from pink to gray depending on feldspar content, dull to vitreous luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65-2.75.
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Physical properties
Hardness of 6-7 on the Mohs scale, colors ranging from pink to gray depending on feldspar content, dull to vitreous luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65-2.75.
Formation & geological history
Formed from the slow cooling of silica-rich magma deep beneath the Earth's surface, typically over millions of years.
Uses & applications
Widely used in construction, monuments, flooring, countertops, and decorative stone due to its durability.
Geological facts
Granite is the primary component of the Earth's continental crust and is exceptionally resistant to weathering.
Field identification & locations
Easily identified in the field by its visible interlocking crystals of quartz, feldspar, and dark minerals like biotite mica. Commonly found in major mountain ranges and shield areas.
