sedimentary
Likely weathered sandstone fragment
Sandstone, chiefly quartz (SiO₂) grains cemented by silica, calcite, or iron oxides
AI-generated identification · may be incorrectGray-brown, dull and fine-grained with an irregular fracture; sandstone is typically Mohs 6–7 for its quartz grains, though cement strength varies. The image does not show enough detail to confirm grain size or cement.
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Physical properties
Gray-brown, dull and fine-grained with an irregular fracture; sandstone is typically Mohs 6–7 for its quartz grains, though cement strength varies. The image does not show enough detail to confirm grain size or cement.
Formation & geological history
Formed when sand was deposited, compacted, and cemented; its age and depositional environment cannot be determined from the image alone.
Uses & applications
Sandstone is used as building and paving stone, aggregate, and decorative material; this small fragment has little practical value.
Geological facts
Sandstone properties vary widely with grain size and cement, so visual identification from a photograph is uncertain.
Field identification & locations
Look for visible sand grains and a gritty texture; a fresh broken surface can help distinguish it from fine-grained rocks. Sandstone occurs worldwide in sedimentary basins.
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