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, composed mainly of quartz, alkali feldspar, and plagioclase. Displays a phaneritic (coarse-grained) texture with pink, white, or gray colors and a vitreous to dull luster.

Identified More igneous →
Explore Granite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

Physical properties

Hardness of 6-7 on Mohs scale, composed mainly of quartz, alkali feldspar, and plagioclase. Displays a phaneritic (coarse-grained) texture with pink, white, or gray colors and a vitreous to dull luster.

Formation & geological history

Formed from the slow cooling of silica-rich magma deep beneath the Earth's surface over millions of years.

Uses & applications

Widely used in construction for dimensional stone, countertops, floor tiles, and monumental architecture.

Geological facts

Granite is the most common intrusive rock in the Earth's continental crust and forms the core of many major mountain ranges.

Field identification & locations

Identify by visible interlocking mineral crystals of quartz and feldspar; found globally in continental shields and intrusive mountain roots.