igneous
Granite
Intrusive Igneous Rock
Hardness of 6 on the Mohs scale; colors range from pink to gray depending on feldspar content; luster is typically dull to vitreous; phaneritic (coarse-grained) crystal structure; specific gravity around 2.65 to 2.75.
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Physical properties
Hardness of 6 on the Mohs scale; colors range from pink to gray depending on feldspar content; luster is typically dull to vitreous; phaneritic (coarse-grained) crystal structure; specific gravity around 2.65 to 2.75.
Formation & geological history
Formed from the slow cooling and crystallization of magma beneath the Earth's surface, often occurring over millions of years in continental crust.
Uses & applications
Widely used in construction, architectural facades, countertops, monuments, and curbing due to its high durability.
Geological facts
Granite is the most common intrusive rock in the Earth's continental crust and is a major component of mountain ranges.
Field identification & locations
Identified by its visible interlocking crystals of quartz, feldspar, and micas. Commonly found in shield areas and mountainous regions worldwide.
