mineral

Iron-rich river pebble

Goethite/hematite-bearing, weathered silicate rock (exact identification requires testing)

AI-generated identification · may be incorrect

Orange-brown, rounded, earthy to dull luster with a fine-grained, non-crystalline appearance; likely Mohs hardness about 5–6, with no visible cleavage. The coloration suggests iron-oxide/hydroxide staining, especially goethite or hematite.

Identified August 16, 2026More mineral →

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Physical properties

Formation & geological history

Likely formed as a resistant natural pebble and rounded by stream or beach transport, with later surface oxidation during weathering. Its original parent rock and geological age cannot be determined from the photograph.

Uses & applications

Primarily a common collecting or decorative specimen; iron oxides may be used as pigments and iron ore, but this individual pebble has negligible industrial value.

Geological facts

A reddish-orange streak on unglazed porcelain would support hematite or goethite; a strong magnetic response could indicate magnetite or iron-rich material. A specific identification requires streak, hardness, density, and magnetic tests.

Field identification & locations

Common in weathered soils, river gravels, beaches, and iron-rich terrains worldwide. Estimated value: $1–$10 as an ordinary pebble, or roughly $10–$30 if unusually attractive or locality-labeled.