
mineral
Small rounded yellow pebble, likely quartz-rich rock
Indeterminate from image; possibly iron-stained quartz or chert
AI-generated identification · may be incorrectPale yellow-orange, rounded and opaque-to-translucent with a dull to slightly waxy luster; likely hardness about 6–7 Mohs if quartz-rich. Crystal structure and cleavage are not visible; scale and texture are limited by the photograph.
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Physical properties
Pale yellow-orange, rounded and opaque-to-translucent with a dull to slightly waxy luster; likely hardness about 6–7 Mohs if quartz-rich. Crystal structure and cleavage are not visible; scale and texture are limited by the photograph.
Formation & geological history
Probably a naturally weathered pebble produced by stream or beach abrasion, with yellow color from iron-oxide staining; its geological age and source cannot be determined visually.
Uses & applications
Primarily a casual collectible or decorative pebble; no significant commercial, construction, or jewelry value unless testing reveals gem-quality material.
Geological facts
The rounded shape indicates transport and abrasion, while yellow coloration commonly results from limonite or goethite coatings rather than the rock’s primary mineral composition.
Field identification & locations
Field identification requires a fresh surface, streak test, hardness test, and ideally specific-gravity or mineralogical analysis; quartz-rich pebbles are widespread in stream gravels, beaches, and glacial deposits.