sedimentary

Weathered sandstone block

Quartz-rich sandstone; exact composition cannot be confirmed from the image

AI-generated identification · may be incorrect

Tan to ochre, dull and granular with apparent bedding or weathering marks. Sandstone is commonly Mohs 6–7 where quartz-rich; grain size and cement vary, and crystal structure is not visible at this scale.

Identified October 3, 2026More sedimentary →

Explore Weathered sandstone block in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Formed when sand accumulated, compacted, and cemented in environments such as rivers, beaches, or deserts. Its age cannot be determined from the image.

Uses & applications

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

Geological facts

Sand grains are typically cemented by silica, calcite, or iron oxides; iron staining often produces yellow, orange, or brown hues.

Field identification & locations

The specimen appears to be a rock among lighter fragments, but the image is insufficient to confirm sandstone rather than another weathered sedimentary rock. Look for visible sand-sized grains and gritty texture; sandstone occurs worldwide in sedimentary basins.