igneous
Pink granite
Granite, chiefly quartz, alkali feldspar and plagioclase with dark mica or amphibole
AI-generated identification · may be incorrectCoarse-grained, mottled pink, white and dark minerals; vitreous quartz and feldspar luster. Typical Mohs hardness is about 6–7; crystals are interlocking, with no prominent cleavage at the whole-rock scale.
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Physical properties
Coarse-grained, mottled pink, white and dark minerals; vitreous quartz and feldspar luster. Typical Mohs hardness is about 6–7; crystals are interlocking, with no prominent cleavage at the whole-rock scale.
Formation & geological history
An intrusive felsic igneous rock formed as silica-rich magma cooled slowly underground, allowing visible crystals to grow. Its age cannot be determined from the image; granite forms in continental crust across many geological periods.
Uses & applications
Used as building and paving stone, countertops, monuments and decorative aggregate; collectible as a representative hand specimen.
Geological facts
The pink color commonly comes from potassium feldspar; quartz is usually the gray or translucent component.
Field identification & locations
Identify by its coarse interlocking grains, pale quartz, pink feldspar and scattered dark minerals; distinguish it from pink sandstone by the crystalline texture. Granite occurs widely in continental shields and mountain belts.
