igneous
Pink granite
Granite, primarily quartz, potassium feldspar, plagioclase, and mica
AI-generated identification · may be incorrectCoarse-grained, pink-and-white, with a granular texture and dull to slightly vitreous luster; Mohs hardness about 6–7, no consistent cleavage as a rock, and specific gravity around 2.6–2.7.
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Physical properties
Coarse-grained, pink-and-white, with a granular texture and dull to slightly vitreous luster; Mohs hardness about 6–7, no consistent cleavage as a rock, and specific gravity around 2.6–2.7.
Formation & geological history
An intrusive igneous rock formed when silica-rich magma cooled slowly underground, allowing visible crystals to grow; most granite formed during Precambrian to Phanerozoic continental uplift events.
Uses & applications
Used for countertops, monuments, building stone, aggregate, landscaping, and polished decorative specimens; this rounded piece is mainly a low-value collector or tactile specimen.
Geological facts
The pink color generally comes from potassium feldspar, while gray or translucent grains are quartz and darker grains are biotite or hornblende.
Field identification & locations
Identify it by interlocking visible crystals, pink feldspar, pale quartz, and scattered dark mica; common worldwide in continental shields and mountain batholiths, including New England, the Sierra Nevada, and Scandinavia.
