Granite

Coarse-grained, pink-and-white speckled rock with visible quartz and feldspar crystals plus dark mica; Mohs hardness about 6–7, vitreous quartz luster, no cleavage as a whole, and specific gravity around 2.6–2.7.

Intrusive igneous rock formed by slow cooling of silica-rich magma deep in Earth’s crust, generally during Precambrian to Phanerozoic geologic time.

Widely used for countertops, monuments, building stone, paving, aggregate, and landscaping; attractive hand specimens have modest collecting value.

The pink color commonly comes from potassium feldspar, while gray translucent grains are quartz and black flakes are biotite or hornblende.

Identify it by its interlocking, easily visible crystals and lack of layering or foliation; common worldwide in continental mountain belts and exposed batholiths. This specimen may also be granitic gneiss if subtle foliation is present, but the image most strongly suggests granite.