Rock Identifier
Granite (Intrusive Igneous Rock) — igneous
igneous

Granite

Intrusive Igneous Rock

Hardness of 6 on the Mohs scale, coarse-grained texture, composed primarily of quartz, feldspar, and mica, with variable colors including pink, white, grey, and black, vitreous to dull luster.

Identified More igneous
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Physical properties

Hardness of 6 on the Mohs scale, coarse-grained texture, composed primarily of quartz, feldspar, and mica, with variable colors including pink, white, grey, and black, vitreous to dull luster.

Formation & geological history

Formed from the slow cooling of magma rich in silica and alkali metal oxides deep underground, typically over millions of years.

Uses & applications

Widely used in construction for countertops, flooring, curbing, monuments, and exterior paving.

Geological facts

Granite is the most common rock of Earth's continental crust and is exceptionally durable against weathering.

Field identification & locations

Easily identified by its speckled, interlocking crystal matrix of pink/white feldspar, glassy quartz, and dark biotite mica. Found globally in shields and mountain roots.