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 with a phaneritic, granular crystal structure. Composed primarily of quartz, alkali feldspar, and plagioclase, displaying a speckled pink, white, or gray color with a dull to vitreous luster.

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Physical properties

Hardness of 6 on the Mohs scale with a phaneritic, granular crystal structure. Composed primarily of quartz, alkali feldspar, and plagioclase, displaying a speckled pink, white, or gray color with a dull to vitreous luster.

Formation & geological history

Formed from the slow cooling of silica-rich magma far beneath the Earth's surface over millions of years. It constitutes a major part of continental crusts globally.

Uses & applications

Widely utilized in construction for dimension stone, countertops, floor tiles, and monuments due to its exceptional durability and aesthetic appeal.

Geological facts

Granite is the most common igneous rock found on Earth's surface and forms the geological core of many mountain ranges like the Sierra Nevada.

Field identification & locations

Easily identified in the field by its distinct interlocking visible mineral grains of quartz, feldspar, and dark micas. Common in continental shields and intrusive plutons worldwide.