sedimentary
Sandstone
Arenite
AI-generated identification · may be incorrectHardness: 6-7 Mohs; Color: Tan, brown, or light grey; Luster: Dull/Earthy; Structure: Clastic; Cleavage: None; Specific Gravity: 2.2-2.8
- Hardness
- 6-7 Mohs
- Color
- Tan, brown, or light grey
- Luster
- Dull/Earthy
Identified More sedimentary →
Explore Sandstone in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 Mohs; Color: Tan, brown, or light grey; Luster: Dull/Earthy; Structure: Clastic; Cleavage: None; Specific Gravity: 2.2-2.8
Formation & geological history
Formed from the accumulation and cementation of sand-sized mineral grains or rock fragments, typically through pressure and mineral-laden water. Common in river beds and coastal areas.
Uses & applications
Widely used in construction for building blocks, paving, countertops, and as a decorative stone in landscaping.
Geological facts
Sandstone makes up about 10 to 25% of all sedimentary rock on Earth. It often preserves fossils and ripple marks from ancient environments.
Field identification & locations
Identify by its gritty sandpaper-like feel and visible grains. Found globally in sedimentary basins. Collectors look for unique banding or fossil inclusions.
More like this
Other sedimentary specimens
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary