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

Granite

Felsic intrusive igneous rock

AI-generated identification · may be incorrect

Hardness of 6 on the Mohs scale, pink to gray or white color, granular phaneritic luster, composed mainly of quartz, alkali feldspar, and plagioclase.

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Physical properties

Hardness of 6 on the Mohs scale, pink to gray or white color, granular phaneritic luster, composed mainly of quartz, alkali feldspar, and plagioclase.

Formation & geological history

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

Uses & applications

Extensively used in construction, monument building, countertops, and architectural facing stone.

Geological facts

Granite is the most common plutonic rock on Earth and forms the major framework of many continental mountain ranges.

Field identification & locations

Easily identified by its visibly interlocking mineral crystals of quartz, feldspar, and dark biotite mica; found worldwide in continental shields.