sedimentary
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
AI-generated identification · may be incorrectHardness: 6-7 (Mohs scale) if quartz-rich; Color: Tan, beige, or yellowish-brown; Luster: Dull/Earthy; Crystal structure: Clastic (grains); Cleavage: None; Grains often feel like sandpaper to the touch.
- Hardness
- 6-7 (Mohs scale) if quartz-rich
- Color
- Tan, beige, or yellowish-brown
- Luster
- Dull/Earthy
Identified More sedimentary →
Explore Sandstone (likely Quartzose Sandstone) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 (Mohs scale) if quartz-rich; Color: Tan, beige, or yellowish-brown; Luster: Dull/Earthy; Crystal structure: Clastic (grains); Cleavage: None; Grains often feel like sandpaper to the touch.
Formation & geological history
Formed from the accumulation and cementation of sand-sized mineral grains or rock fragments. Produced in high-energy environments like deserts, beaches, or river deltas.
Uses & applications
Construction material, road base, architectural stone, and as a reservoir rock for water, oil, and natural gas.
Geological facts
Sandstone accounts for about 10-20% of all sedimentary rocks on Earth. Its porosity makes it a critical primary source for aquifers and petroleum reservoirs.
Field identification & locations
Identify by its gritty texture (feels like sandpaper) and visible sand grains. Found globally in continental shelf and desert regions. 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