igneous
Granite (likely)
Granite, a quartz–feldspar–mica intrusive igneous rock
AI-generated identification · may be incorrectCoarse-grained, gray and speckled with interlocking crystals; likely quartz, feldspar, and dark mica or amphibole. Typical Mohs hardness is about 6–7; it has no regular cleavage and a granular crystalline texture. Exact mineral proportions are difficult to confirm from the photo.
Identified More igneous →
Explore Granite (likely) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Coarse-grained, gray and speckled with interlocking crystals; likely quartz, feldspar, and dark mica or amphibole. Typical Mohs hardness is about 6–7; it has no regular cleavage and a granular crystalline texture. Exact mineral proportions are difficult to confirm from the photo.
Formation & geological history
Granite forms when silica-rich magma cools slowly underground, allowing visible crystals to grow. Its age cannot be determined from appearance; granites occur in ancient continental crust as well as younger intrusions.
Uses & applications
Used as dimension stone, building and paving material, countertops, monuments, and crushed aggregate; intact attractive pieces may be collected.
Geological facts
Granite is a rock rather than a single mineral, and its color and durability depend on the proportions of quartz, feldspar, and accessory minerals.
Field identification & locations
The visible pale and dark grains and massive, crystalline texture fit granite, though gneiss or another granitoid cannot be ruled out from this image alone. Granite is common in continental mountain belts and exposed bedrock; confirm with a fresh surface and mineral identification.
