Rock Identifier
Granite (Intrusive igneous rock) — igneous
igneous

Granite

Intrusive igneous rock

AI-generated identification · may be incorrect

Hardness 6 on Mohs scale; pink, white, grey, or black; dull to vitreous luster; interlocking crystal structure of quartz, feldspar, and mica.

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Physical properties

Hardness 6 on Mohs scale; pink, white, grey, or black; dull to vitreous luster; interlocking crystal structure of quartz, feldspar, and mica.

Formation & geological history

Forms from the slow cooling of silica-rich magma deep underground, typically over millions of years.

Uses & applications

Widely used in construction, monuments, countertops, and decorative stone.

Geological facts

Granite is the most common rock of Earth's continental crust and is extremely durable against weathering.

Field identification & locations

Identify by visible interlocking mineral grains of clear quartz, pink or white feldspar, and dark biotite mica; found globally in shields and mountain cores.