mineral
Pale yellow quartz pebble
Quartz, SiO₂; identification is uncertain from the image alone
AI-generated identification · may be incorrectOpaque to slightly translucent, pale yellow, with a dull to waxy surface and no obvious cleavage; quartz has Mohs hardness 7 and a trigonal crystal structure. The smooth, rounded shape suggests a naturally worn pebble or a polished specimen.
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Physical properties
Opaque to slightly translucent, pale yellow, with a dull to waxy surface and no obvious cleavage; quartz has Mohs hardness 7 and a trigonal crystal structure. The smooth, rounded shape suggests a naturally worn pebble or a polished specimen.
Formation & geological history
Quartz commonly crystallizes from silica-rich fluids in veins and igneous or metamorphic rocks; pebbles form through weathering and transport. Its geological age cannot be determined from appearance alone.
Uses & applications
Quartz is used in glassmaking, electronics, abrasives, and decorative objects; attractive pieces may be polished for collecting or jewelry.
Geological facts
Yellow coloration can result from iron staining or inclusions; the image does not establish a specific quartz variety.
Field identification & locations
Look for hardness near 7, lack of cleavage, and glassy fracture on an unpolished surface; quartz occurs worldwide. A plain pebble is commonly worth about $1–$10, depending on size and finish.
