Rock Identifier
Granite (Felsic intrusive igneous rock) — igneous
igneous

Granite

Felsic intrusive igneous rock

AI-generated identification · may be incorrect

Hardness of 6-7 on Mohs scale. Colors range from pink to gray with speckled grains of quartz, feldspar, and mica. It has a phaneritic, coarse-grained crystal structure with dull to glassy luster.

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Physical properties

Hardness of 6-7 on Mohs scale. Colors range from pink to gray with speckled grains of quartz, feldspar, and mica. It has a phaneritic, coarse-grained crystal structure with dull to glassy luster.

Formation & geological history

Formed from the slow crystallization of magma beneath Earth's surface over millions of years. Commonly found in continental crust and major mountain ranges.

Uses & applications

Extensively used in construction, dimension stone, architectural facings, monuments, and kitchen countertops.

Geological facts

Granite is the most common rock of Earth's continental crust and is exceptionally resistant to weathering. It serves as the geological baseline for many continental shields.

Field identification & locations

Identify in the field by interlocking visible crystals of quartz, pink or white feldspar, and dark biotite mica. Found globally in core mountain belts and batholiths.