igneous
Pink granite
Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica
AI-generated identification · may be incorrectVisible interlocking pink feldspar, gray/translucent quartz, and dark mica or amphibole grains. Typical hardness is about 6–7 Mohs; it has a granular texture, no consistent cleavage as a whole, and specific gravity around 2.6–2.7.
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Physical properties
Visible interlocking pink feldspar, gray/translucent quartz, and dark mica or amphibole grains. Typical hardness is about 6–7 Mohs; it has a granular texture, no consistent cleavage as a whole, and specific gravity around 2.6–2.7.
Formation & geological history
Magma cooled slowly beneath the surface, allowing large crystals to grow; granite forms in continental crust, with ages varying widely by locality. The image alone cannot determine its geological age or exact composition.
Uses & applications
Commonly used as building and paving stone, countertops, monuments, and decorative aggregate; attractive pieces may be collected as specimens.
Geological facts
The pink color usually comes from potassium feldspar. Granite is a rock rather than a single mineral, so its exact mineral proportions and properties vary.
Field identification & locations
Identify it by its coarse, speckled texture and interlocking light and dark crystals; a fresh, hard surface commonly resists scratching by a steel knife. It occurs widely in continental mountain belts and exposed ancient crust.
