sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
Hardness: 6-7 (Mohs); Color: Tan, beige, grey; Luster: Dull/Earthy; Crystal structure: Granular (clastic); Cleavage: None; Specific gravity: 2.2-2.8
- Hardness
- 6-7 (Mohs)
- Color
- Tan, beige, grey
- Luster
- Dull/Earthy
Identified More sedimentary →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 (Mohs); Color: Tan, beige, grey; Luster: Dull/Earthy; Crystal structure: Granular (clastic); Cleavage: None; Specific gravity: 2.2-2.8
Formation & geological history
Formed through the accumulation and cementation of sand-sized mineral grains or rock fragments. These typically form in river beds, beaches, or deserts and undergo lithification over millions of years.
Uses & applications
Used widely in construction (building stone, concrete aggregate), glass manufacturing (if high silica), and as a common landscaping material.
Geological facts
Sandstone is one of the most common sedimentary rocks on Earth. It often preserves fossils and serves as a primary reservoir for ground water and petroleum because of its porosity.
Field identification & locations
Identify by its 'sandpaper' feel and visible grains. Often found in riverbeds or coastal regions. Look for bedding planes or layering in larger outcrops.
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
sedimentary
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone
Arenite
sedimentary