igneous
Granite pebble
Granite, a coarse-grained felsic intrusive igneous rock composed mainly of quartz, feldspar, and mica
AI-generated identification · may be incorrectPinkish-white with dark mica flecks and a granular, crystalline texture; quartz hardness 7 and feldspars about 6 on Mohs. Typically nonmetallic, with interlocking crystals and no consistent cleavage as a whole rock.
Identified More igneous →
Explore Granite pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Pinkish-white with dark mica flecks and a granular, crystalline texture; quartz hardness 7 and feldspars about 6 on Mohs. Typically nonmetallic, with interlocking crystals and no consistent cleavage as a whole rock.
Formation & geological history
Formed as silica-rich magma cooled slowly underground, allowing visible crystals to grow; granites occur in ancient continental crust and range from Precambrian to recent geological ages.
Uses & applications
Granite is widely used for building stone, paving, countertops, monuments, and aggregate; this small rounded pebble is mainly suitable for collecting or display.
Geological facts
The pale grains are likely quartz and feldspar, while the dark patches are probably biotite or another dark mineral.
Field identification & locations
Its mixed light and dark visible grains and hard, compact texture suggest granite; rounded edges indicate transport by water or weathering. Granite is common worldwide, especially in continental mountain belts and exposed shields.
