mineral
Brown-orange quartz pebble, possibly iron-stained quartzite
Quartz (SiO₂); exact identification is uncertain from the photograph
AI-generated identification · may be incorrectOpaque to slightly translucent, brown-orange with pale veins and a dull-to-waxy surface; quartz has Mohs hardness 7 and a trigonal crystal structure, with no cleavage. The rounded shape suggests water wear or tumbling.
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Physical properties
Opaque to slightly translucent, brown-orange with pale veins and a dull-to-waxy surface; quartz has Mohs hardness 7 and a trigonal crystal structure, with no cleavage. The rounded shape suggests water wear or tumbling.
Formation & geological history
Likely quartz-rich material colored by iron oxides; quartz forms in many igneous, metamorphic, and sedimentary settings and spans a vast range of geological ages.
Uses & applications
Quartz is used in glass, electronics, construction, and ornaments; this small pebble is mainly suitable for a collection or craft use.
Geological facts
Iron oxide staining commonly gives quartz and quartz-rich rocks reddish or brown hues.
Field identification & locations
Look for hardness (scratches glass), lack of cleavage, and a pale streak; a scratch or streak test would help distinguish quartz from softer lookalikes. Quartz is widespread worldwide.
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Mineral