sedimentary

Weathered sandstone

Quartz-rich sandstone (likely litharenite; exact identification requires examination)

AI-generated identification · may be incorrect

Tan to brown, dull and rough, with apparent granular texture; likely composed mainly of quartz and rock fragments cemented by silica, calcite, or iron oxides. Typical sandstone hardness varies with cement, roughly 3–7 Mohs; no consistent cleavage or crystal structure.

Identified October 9, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed as sand accumulated, compacted, and cemented in a sedimentary environment; the specimen’s age and setting cannot be determined from the image.

Uses & applications

Sandstone is used as building and paving stone, landscaping material, and aggregate; this weathered fragment has little apparent commercial value.

Geological facts

Sandstone’s resistance to erosion depends strongly on its cement and grain size.

Field identification & locations

The visible tan, gritty-looking surface is consistent with weathered sandstone, but the image is not detailed enough to confirm it or distinguish it from other rocks. Common worldwide, especially in exposed sedimentary formations; a hand lens and hardness test can help identify it.