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, coarse-grained texture, composed primarily of quartz, alkali feldspar, and plagioclase, with a vitreous to dull luster.

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Physical properties

Hardness of 6 on the Mohs scale, coarse-grained texture, composed primarily of quartz, alkali feldspar, and plagioclase, with a vitreous to dull luster.

Formation & geological history

Formed from the slow crystallization of magma below Earth's surface over millions of years.

Uses & applications

Widely used in construction, architectural facings, monuments, and countertops.

Geological facts

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

Field identification & locations

Identifiable by its visible interlocking mineral crystals of quartz (clear/gray), feldspar (pink/white), and biotite (black). Found globally in continental shields.