igneous
Weathered granite pebble
Granite, chiefly quartz (SiO₂), feldspar, and minor mica
AI-generated identification · may be incorrectCoarse, interlocking grains with cream-white, pink-orange, and dark mineral patches; likely Mohs 6–7, vitreous to dull luster, no regular cleavage as a whole. The rounded shape and mottled appearance fit a naturally weathered granite pebble.
Identified More igneous →
Explore Weathered granite pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Coarse, interlocking grains with cream-white, pink-orange, and dark mineral patches; likely Mohs 6–7, vitreous to dull luster, no regular cleavage as a whole. The rounded shape and mottled appearance fit a naturally weathered granite pebble.
Formation & geological history
Granite forms when silica-rich magma cools slowly underground, allowing visible crystals to grow. It occurs in crust of many ages; this pebble’s precise age cannot be determined from the image.
Uses & applications
Granite is widely used as dimension stone, paving, countertops, and aggregate; small pebbles are mainly decorative or collectible.
Geological facts
Its pink and orange tones commonly come from potassium feldspar, while gray or glassy grains are often quartz.
Field identification & locations
Look for distinct interlocking light and dark crystals and a granular texture; common in stream and beach gravels near granite bedrock. Image-based identification is approximate.
