igneous
Granite
Granite, a coarse-grained felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica
AI-generated identification · may be incorrectThe hand specimen appears pale gray and mottled, with a granular texture. Typical granite minerals have Mohs hardness about 6–7; individual crystals are generally glassy quartz and feldspar with possible dark mica.
Identified More igneous →
Explore Granite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
The hand specimen appears pale gray and mottled, with a granular texture. Typical granite minerals have Mohs hardness about 6–7; individual crystals are generally glassy quartz and feldspar with possible dark mica.
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
Commonly used for building stone, paving, countertops, monuments, and aggregate; attractive pieces may be polished for decorative use.
Geological facts
Granite is a rock rather than a single mineral; its exact composition and texture vary by location.
Field identification & locations
Look for interlocking light quartz and feldspar grains, often with scattered dark mica. The photo is blurred, so identification is tentative; granite is widespread in continental mountain belts and old crustal regions.
