igneous
Weathered granite pebble
Granite, a coarse-grained felsic intrusive igneous rock
AI-generated identification · may be incorrectPale cream-gray with visible quartz, feldspar, and sparkling mica; granular texture and no consistent cleavage. Typical minerals have Mohs hardness of about 6–7 (quartz) and 6 (feldspar); granite’s specific gravity is roughly 2.6–2.7.
Identified More igneous →
Explore Weathered granite pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Pale cream-gray with visible quartz, feldspar, and sparkling mica; granular texture and no consistent cleavage. Typical minerals have Mohs hardness of about 6–7 (quartz) and 6 (feldspar); granite’s specific gravity is roughly 2.6–2.7.
Formation & geological history
Granite forms when silica-rich magma cools slowly underground, allowing crystals to grow. Its age cannot be determined from the photo; granite bodies range from recent to billions of years old.
Uses & applications
Granite is widely used as crushed aggregate, building and paving stone, countertops, and decorative or educational specimens.
Geological facts
The pale color and scattered reflective grains are consistent with a quartz–feldspar rock containing mica, though a photograph cannot confirm its exact composition.
Field identification & locations
Look for interlocking light quartz and feldspar grains with darker or shiny mica; granite is common in continental crust and exposed mountain ranges worldwide. The rounded shape suggests weathering or transport.
