sedimentary
Sandstone Pebble
Arenite (SiO2 based)
AI-generated identification · may be incorrectHardness: 6-7 on Mohs scale; Color: Tan, brown, or grey; Luster: Dull/Earthy; Crystal Structure: Clastic texture; Specific Gravity: 2.2-2.8
- Hardness
- 6-7 on Mohs scale
- Color
- Tan, brown, or grey
- Luster
- Dull/Earthy
Identified More sedimentary →
Explore Sandstone Pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 on Mohs scale; Color: Tan, brown, or grey; Luster: Dull/Earthy; Crystal Structure: Clastic texture; Specific Gravity: 2.2-2.8
Formation & geological history
Formed by the accumulation and lithification of sand-sized mineral grains or rock fragments, typically through pressure and mineral cements like silica or calcium carbonate in riverbeds or coastal environments.
Uses & applications
Primarily used in construction, road base, and as a landscaping material. In larger forms, it is a significant building stone.
Geological facts
Sandstone is one of the most common sedimentary rocks on Earth and often acts as a natural aquifer, storing groundwater or petroleum within its porous structure.
Field identification & locations
Identify in the field by its gritty, sandpaper-like feel and visible grains. Commonly found in riverbeds, deserts, and coastal areas worldwide.
More like this
Other sedimentary specimens
Fossil-bearing concretion, possibly containing a fossil shell or other organic inclusion
Calcareous concretion; exact fossil and host-rock composition are not identifiable from the image
fossil
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary