Rock Identifier
Granite (Intrusive igneous rock) — igneous
igneous

Granite

Intrusive igneous rock

AI-generated identification · may be incorrect

Hardness of 6 on the Mohs scale, speckled pink, white, and black colors, dull to sub-crystalline luster, and interlocking crystalline structure.

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Physical properties

Hardness of 6 on the Mohs scale, speckled pink, white, and black colors, dull to sub-crystalline luster, and interlocking crystalline structure.

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 commercial construction, kitchen countertops, monuments, and architectural facings.

Geological facts

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

Field identification & locations

Easily identified by its distinct salt-and-pepper or pink-mottled interlocking mineral grains of quartz, feldspar, and mica.