sedimentary

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (primarily SiO2)

AI-generated identification · may be incorrect

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 April 14, 2026More sedimentary →

Explore Sandstone (Quartzose Sandstone) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

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.