sedimentary

Sandstone (likely Arkosic or Lithic Sandstone)

Clastic Sedimentary Rock (SiO2 with assorted minerals)

AI-generated identification · may be incorrect

Hardness: 6-7 (Mohs scale), Color: Tan to light brown with irony staining, Luster: Dull/Earthy, Crystal Structure: Clastic/Granular, Cleavage: None, Specific Gravity: 2.2-2.8

Identified April 23, 2026More sedimentary →

Explore Sandstone (likely Arkosic or Lithic 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 scale), Color: Tan to light brown with irony staining, Luster: Dull/Earthy, Crystal Structure: Clastic/Granular, 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. This process occurs in environments such as river beds, deserts, or marine deltas over millions of years through lithification.

Uses & applications

Commonly used as a building material, in decorative landscaping, for glass manufacturing (if high silica content), and as a reservoir rock for oil and natural gas.

Geological facts

Sandstone makes up about 20-25% of all sedimentary rocks on Earth. The famous red rock formations in Sedona, Arizona and the Grand Canyon are composed primarily of varied sandstone layers.

Field identification & locations

Identify in the field by its gritty 'sandpaper' feel and visible grain layers. Look for it in outcrops where erosion has exposed horizontal bedding. It is a fundamental rock for learning about sedimentary processes.