igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale, colors vary widely (pink, white, gray, black) depending on mineral content, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 - 2.75.
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Physical properties
Hardness of 6 on the Mohs scale, colors vary widely (pink, white, gray, black) depending on mineral content, vitreous to dull luster, phaneritic (coarse-grained) crystal structure, specific gravity around 2.65 - 2.75.
Formation & geological history
Formed from the slow cooling of magma rich in silica and alkali feldspar deep beneath the Earth's surface, typically over millions of years.
Uses & applications
Commonly used in construction, monuments, countertops, flooring, and decorative aggregate.
Geological facts
Granite makes up a major part of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Easily identified by its speckled appearance showing interlocking crystals of quartz, feldspar, and mica. Found worldwide in continental shields and mountain belts.
