igneous
Likely pink granite
Granite, a coarse-grained felsic intrusive igneous rock; typically quartz, feldspars, and mica
AI-generated identification · may be incorrectThe fragment appears pinkish, mottled, and granular, consistent with feldspar and quartz. Granite’s Mohs hardness is about 6–7; it has a crystalline texture, variable luster, and no consistent cleavage as a rock.
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Physical properties
The fragment appears pinkish, mottled, and granular, consistent with feldspar and quartz. Granite’s Mohs hardness is about 6–7; it has a crystalline texture, variable luster, and no consistent cleavage as a rock.
Formation & geological history
Granite forms when silica-rich magma cools slowly underground, allowing visible crystals to grow. It occurs in continental crust and ranges widely in geological age.
Uses & applications
Used as building and paving stone, countertops, monuments, and decorative aggregate; small pieces may be kept as specimens.
Geological facts
Pink color commonly comes from potassium feldspar, while gray or glassy grains may be quartz and dark flecks may be mica or amphibole.
Field identification & locations
Look for interlocking grains and a mix of light quartz/feldspar with darker minerals; the photo’s small, weathered fragment does not allow a certain identification. Granite is widespread in continental mountain belts and exposed plutons.
