mineral
Likely iron-stained quartz pebble
Quartz (SiO₂), possibly coated with iron oxides such as goethite or hematite
AI-generated identification · may be incorrectSmall, rounded, ochre-orange pebble with a slightly glossy surface; quartz is Mohs 7, vitreous, and hexagonal, but the coating obscures its crystal form. Identification is tentative from the photo alone.
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Physical properties
Small, rounded, ochre-orange pebble with a slightly glossy surface; quartz is Mohs 7, vitreous, and hexagonal, but the coating obscures its crystal form. Identification is tentative from the photo alone.
Formation & geological history
Quartz commonly forms in veins and many rock types; rounding suggests transport by water or abrasion. Iron-oxide staining develops through weathering, and the specimen’s age cannot be determined visually.
Uses & applications
Quartz is used in glass, electronics, and decorative objects; small pebbles are mainly collectible or ornamental.
Geological facts
Iron oxides commonly stain quartz yellow, orange, or brown. A fresh break or scratch test may reveal pale quartz beneath the coating.
Field identification & locations
Look for hardness, a glassy fracture, and lack of cleavage; the orange color alone cannot confirm quartz. Quartz occurs worldwide in veins, beaches, and river gravels.
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