
metamorphic
Tumbled pink quartzite or quartz-rich stone
Quartzite, predominantly crystalline SiO₂
AI-generated identification · may be incorrectHardness about 7 Mohs; pale pink to salmon with white, translucent quartz-rich patches and a dull-to-glassy luster. Massive, nonfoliated texture; no obvious cleavage, with irregular fracture and likely medium-high specific gravity around 2.6–2.7.
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Physical properties
Hardness about 7 Mohs; pale pink to salmon with white, translucent quartz-rich patches and a dull-to-glassy luster. Massive, nonfoliated texture; no obvious cleavage, with irregular fracture and likely medium-high specific gravity around 2.6–2.7.
Formation & geological history
Likely formed when quartz-rich sandstone recrystallized under heat and pressure, commonly during Precambrian to younger mountain-building events. The rounded shape appears human-tumbled or naturally water-worn.
Uses & applications
Used as aggregate, paving and decorative stone; attractive pieces are collected or used in crafts, but this specimen appears modestly valuable.
Geological facts
Pink coloration may come from iron-bearing impurities, feldspar, or trace inclusions; the image is insufficient to distinguish quartzite confidently from massive rose quartz or pink chalcedony.
Field identification & locations
Test by scratching glass: genuine quartz-rich material should scratch it, while steel usually does not. Common sources include Brazil, Madagascar, India, the United States, and many metamorphic mountain belts.
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