mineral
Small pink quartz pebble
Quartz, SiO₂; possibly rose quartz or pale chalcedony
AI-generated identification · may be incorrectPale pink, opaque-to-translucent, rounded and apparently tumbled; glassy to waxy luster. Quartz has Mohs hardness 7, trigonal crystal structure, no cleavage, conchoidal fracture, and specific gravity about 2.65.
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Physical properties
Pale pink, opaque-to-translucent, rounded and apparently tumbled; glassy to waxy luster. Quartz has Mohs hardness 7, trigonal crystal structure, no cleavage, conchoidal fracture, and specific gravity about 2.65.
Formation & geological history
Likely weathered quartz from a silica-rich igneous or metamorphic rock, later rounded by transport or tumbling. Its exact geological age and locality cannot be determined from the photograph.
Uses & applications
Used as a decorative tumbled stone, craft material, or inexpensive collectible; quartz is also important in glass, ceramics, electronics, and abrasives. Typical value is about $1–$5 for a piece this size.
Geological facts
Pink coloration may result from trace inclusions or irradiation-related defects, but visual identification as true rose quartz is uncertain. The rounded surface appears human-tumbled or naturally waterworn.
Field identification & locations
Test with a steel file or knife: quartz should resist scratching; it should scratch glass but not be scratched by steel. Common sources include Brazil, Madagascar, India, and the United States; confirm identity with hardness and streak tests.
