igneous
Pink granite (probable)
Granite, composed mainly of quartz, alkali feldspar, and plagioclase with minor mica
AI-generated identification · may be incorrectCoarse-grained, pink and mottled gray-white, with a granular texture and generally dull to slightly glassy luster; hardness is about 6–7 Mohs, with no prominent cleavage as a whole. The specimen appears weathered and possibly partially coated, so exact identification is uncertain from the image alone.
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Physical properties
Coarse-grained, pink and mottled gray-white, with a granular texture and generally dull to slightly glassy luster; hardness is about 6–7 Mohs, with no prominent cleavage as a whole. The specimen appears weathered and possibly partially coated, so exact identification is uncertain from the image alone.
Formation & geological history
Granite forms when silica-rich magma cools slowly underground, allowing large crystals to grow; individual bodies may range from Precambrian to younger Phanerozoic ages. It commonly occurs in continental mountain belts and exposed batholiths.
Uses & applications
Widely used as dimension stone, countertops, monuments, paving, and aggregate; attractive polished pieces are also sold as decorative specimens.
Geological facts
Pink coloration usually reflects potassium-rich feldspar, while darker grains are commonly biotite or amphibole. Its visible interlocking crystals distinguish it from most sedimentary rocks.
Field identification & locations
Look for interlocking visible crystals of pink feldspar, gray translucent quartz, and black mica, with no layering or rounded grains. Common worldwide, including India, Brazil, Scandinavia, and the United States.
