sedimentary

Rounded brown pebble

Indeterminate lithic clast; possibly weathered sandstone or iron-stained quartzite

AI-generated identification · may be incorrect

Small, smooth, subrounded pebble with tan-brown coloration and dull to faintly earthy luster; grain texture and hardness cannot be determined reliably from the image, though likely about Mohs 5–7 if sandstone/quartzite.

Identified August 25, 2026More sedimentary →

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Physical properties

Formation & geological history

Probably naturally weathered and water-rounded from a larger rock; its geological age and exact formation environment cannot be established visually. The surface may also be artificially tumbled or polished.

Uses & applications

Likely a decorative or collected stone with negligible commercial value; comparable pebbles may be used in landscaping, crafts, or jewelry settings.

Geological facts

The image does not show diagnostic crystals, layering, fossils, or cleavage, so species-level identification is not possible from appearance alone.

Field identification & locations

Test hardness against glass, inspect a fresh edge with magnification, and apply dilute hydrochloric acid to check for carbonate reaction. Common possibilities include stream gravel, sandstone, quartzite, or iron-stained chert.