igneous
Pink granite
Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica
AI-generated identification · may be incorrectPink and pale gray with dark mineral flecks; interlocking grains and no obvious layering. Typical hardness is about 6–7 Mohs; luster is mostly dull to glassy, and crystals have no consistent cleavage as a rock.
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Physical properties
Pink and pale gray with dark mineral flecks; interlocking grains and no obvious layering. Typical hardness is about 6–7 Mohs; luster is mostly dull to glassy, and crystals have no consistent cleavage as a rock.
Formation & geological history
Magma cooled slowly underground, allowing visible crystals to form; granite bodies occur in continental crust and range widely in age, often billions to tens of millions of years old.
Uses & applications
Used for building stone, paving, countertops, monuments, and decorative or educational specimens.
Geological facts
Pink color commonly comes from potassium feldspar; dark specks are often biotite or amphibole.
Field identification & locations
Look for a hard, speckled rock with interlocking quartz and feldspar grains; it will not fizz in dilute acid. Pink granite is widespread in continental mountain belts and shields, but this small fragment cannot be assigned a specific source.
