sedimentary

Weathered sandstone

Quartz-rich clastic sandstone; exact composition cannot be determined from the photo

AI-generated identification · may be incorrect

Tan-brown, rough and granular, with visible sand-sized grains and no obvious crystals. Quartz-rich sandstone is typically Mohs 6–7 for its grains, though the rock may crumble depending on its cement.

Identified October 15, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed as sand was deposited, compacted, and cemented; its age and depositional setting cannot be identified from the image.

Uses & applications

Sandstone is used as building and paving stone, aggregate, and sometimes decorative material; this small fragment has little commercial value.

Geological facts

Sandstone grains are commonly quartz, but feldspar and rock fragments may also occur; iron-bearing minerals can produce rusty brown colors.

Field identification & locations

The grainy texture and layered, irregular break are consistent with sandstone, but a close inspection is needed to distinguish it from other gritty rocks. Common worldwide in sedimentary basins and exposed strata.