igneous
Granite (likely)
Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica
AI-generated identification · may be incorrectThe specimen is small, rough, and speckled with light and dark grains, consistent with granite. Typical granite has Mohs hardness 6–7, a granular crystalline texture, and no prominent cleavage; its exact properties cannot be confirmed from the image alone.
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
The specimen is small, rough, and speckled with light and dark grains, consistent with granite. Typical granite has Mohs hardness 6–7, a granular crystalline texture, and no prominent cleavage; its exact properties cannot be confirmed from the image alone.
Formation & geological history
Granite forms when silica-rich magma cools slowly underground, allowing visible crystals to grow. Granites occur in continental crust across many geological ages.
Uses & applications
Granite is widely used as building stone, countertops, paving, and decorative aggregate; small pieces are also collected.
Geological facts
The visible contrasting grains suggest an interlocking mixture of pale feldspar or quartz and dark minerals such as biotite.
Field identification & locations
Look for a hard, speckled rock with interlocking visible crystals; quartz typically resists scratching by a steel knife. Granite is common in mountain belts and exposed continental bedrock worldwide.
