igneous
Pink granite fragment
Granite, chiefly quartz, alkali feldspar, plagioclase, and minor biotite/hornblende
AI-generated identification · may be incorrectCoarse-grained, pale pink and white with dark flecks; likely Mohs 6–7, with vitreous quartz and blocky feldspar cleavage. The irregular broken surface and visible interlocking crystals are consistent with granite, though the small, low-resolution image limits certainty.
Identified More igneous →
Explore Pink granite fragment in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Coarse-grained, pale pink and white with dark flecks; likely Mohs 6–7, with vitreous quartz and blocky feldspar cleavage. The irregular broken surface and visible interlocking crystals are consistent with granite, though the small, low-resolution image limits certainty.
Formation & geological history
Granite forms when silica-rich magma cools slowly deep within continental crust, producing large crystals; specimens range from Precambrian to geologically recent plutons. Common sources include continental mountain belts and exposed batholiths.
Uses & applications
Widely used as dimension stone, countertops, monuments, paving, aggregate, and landscaping rock; attractive hand specimens have modest collector appeal.
Geological facts
The pink color commonly comes from potassium feldspar, while translucent gray grains are quartz. Granite is an intrusive igneous rock, unlike fine-grained volcanic rhyolite.
Field identification & locations
Look for interlocking visible crystals, pink or white feldspar, glassy quartz, and scattered black mica or amphibole; it is not layered or foliated. Common worldwide, especially in India, Brazil, Canada, Scandinavia, and the United States.
