Rock Identifier
Granite (Intrusive Igneous Rock) — igneous
igneous

Granite

Intrusive Igneous Rock

Hardness of 6-7 on the Mohs scale, predominantly pink, white, grey, or black with a phaneritic (coarse-grained) texture, vitreous to dull luster, specific gravity of 2.65-2.75.

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 the Mohs scale, predominantly pink, white, grey, or black with a phaneritic (coarse-grained) texture, vitreous to dull luster, specific gravity of 2.65-2.75.

Formation & geological history

Formed from the slow cooling and solidification of magma rich in silica and alkali metals far beneath the Earth's surface, typically over millions of years.

Uses & applications

Commonly used in construction, architectural buildings, countertops, monuments, paving stones, and interior design.

Geological facts

Granite makes up a major portion of the Earth's continental crust and is one of the most durable natural building stones available.

Field identification & locations

Easily identified by its distinct interlocking mineral grains of quartz, feldspar, and mica. Found globally in mountainous regions and shield areas.