mineral
Yellow quartz pebble
Quartz, SiO₂ (likely iron-stained milky quartz)
AI-generated identification · may be incorrectCreamy yellow to white, opaque, with a dull-to-glassy luster and irregular fracture; quartz has Mohs hardness 7 and a trigonal crystal structure, with no cleavage. The photo does not allow a definitive mineral identification.
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Physical properties
Creamy yellow to white, opaque, with a dull-to-glassy luster and irregular fracture; quartz has Mohs hardness 7 and a trigonal crystal structure, with no cleavage. The photo does not allow a definitive mineral identification.
Formation & geological history
Likely a quartz-rich fragment weathered from an igneous or metamorphic source and rounded during transport in water. Its geological age cannot be determined from appearance alone.
Uses & applications
Quartz is used in glass, electronics, abrasives, and decorative stone; this small pebble is mainly suitable for collecting or crafts.
Geological facts
Yellow-brown coloring commonly comes from iron-oxide staining rather than a distinct yellow quartz variety.
Field identification & locations
Look for hardness sufficient to scratch glass and lack of cleavage; confirm with tests, since several pale minerals can look similar. Quartz pebbles occur widely in riverbeds and gravel deposits.
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