igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale; commonly pink, white, gray, or black; dull to subvitreous luster; phaneritic (coarse-grained) crystal structure; high specific gravity around 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale; commonly pink, white, gray, or black; dull to subvitreous luster; phaneritic (coarse-grained) crystal structure; high specific gravity around 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling of magma rich in silica and alkali aluminum silicates deep beneath the Earth's surface over millions of years.
Uses & applications
Widely used in construction, monuments, countertops, flooring, and as crushed stone for paving.
Geological facts
Granite is the most common rock of the Earth's continental crust and is exceptionally durable against weathering.
Field identification & locations
Identified by its visible interlocking mineral grains, primarily quartz, feldspar, and mica. Found worldwide in major mountain belts and shield areas.
