igneous
Granite-like rock
Coarse-grained granitoid, likely granite or granodiorite
AI-generated identification · may be incorrectInterlocking gray, white, and dark mineral grains with a granular texture and vitreous-to-dull luster; mainly quartz, feldspar, and dark mica/amphibole. Typical hardness is about 6–7 Mohs, with no obvious cleavage as a whole rock.
Identified More igneous →
Explore Granite-like rock in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Interlocking gray, white, and dark mineral grains with a granular texture and vitreous-to-dull luster; mainly quartz, feldspar, and dark mica/amphibole. Typical hardness is about 6–7 Mohs, with no obvious cleavage as a whole rock.
Formation & geological history
Formed when silica-rich magma cooled slowly deep within Earth, producing visible crystals; commonly Paleozoic to Precambrian in exposed continental crust, though age cannot be determined from the image.
Uses & applications
Widely used as building stone, countertops, monuments, aggregate, and decorative landscaping material; this small rough piece has minimal commercial value.
Geological facts
The pale grains are likely feldspar and quartz, while dark grains are biotite or hornblende. A fresh broken surface should show distinct interlocking crystals rather than layers or sedimentary fragments.
Field identification & locations
Common in continental mountain belts and exposed plutons worldwide. Confirm with a glass-scratch test, quartz-rich translucent grains, and acid testing only if carbonate minerals are suspected; exact identification requires a fresh surface or thin section.
