igneous
Coarse-grained pink granite
Granite; predominantly quartz, potassium feldspar, plagioclase, and biotite/hornblende
AI-generated identification · may be incorrectHardness about 6–7 Mohs; mottled pink, white, gray, and black, with a vitreous quartz/feldspar luster and visible interlocking crystals. Massive, nonfoliated, with poor or absent cleavage as a rock.
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Physical properties
Hardness about 6–7 Mohs; mottled pink, white, gray, and black, with a vitreous quartz/feldspar luster and visible interlocking crystals. Massive, nonfoliated, with poor or absent cleavage as a rock.
Formation & geological history
An intrusive igneous rock that crystallized slowly from silica-rich magma deep within continental crust, commonly during Precambrian to Phanerozoic mountain-building events. Uplift and erosion later exposed the body at the surface.
Uses & applications
Widely used for countertops, monuments, building stone, paving, aggregate, and memorials; attractive pieces are collected as hand specimens or polished slabs.
Geological facts
The pink color generally comes from potassium feldspar, while black grains are usually biotite or hornblende. Its coarse texture reflects slow underground cooling.
Field identification & locations
Identify it by interlocking millimeter- to centimeter-scale crystals, abundant pink feldspar, glassy gray quartz, and dark mica or amphibole; it lacks layering or foliation. Common worldwide, including India, Brazil, Scandinavia, Canada, and the United States.
