sedimentary

Sandstone (likely Arkosic or Lithic Sandstone)

Arenite (SiO2 based with mineral inclusions)

AI-generated identification · may be incorrect

Hardness: 6-7 (individual grains); Color: Tan, beige, or light brown; Luster: Dull/Earthy; Crystal Structure: Clastic texture with visible sand-sized grains; Specific Gravity: 2.2 - 2.8

Hardness: 6-7 (individual grains)
Color: Tan, beige, or light brown
Luster: Dull/Earthy

Identified April 24, 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 (individual grains); Color: Tan, beige, or light brown; Luster: Dull/Earthy; Crystal Structure: Clastic texture with visible sand-sized grains; Specific Gravity: 2.2 - 2.8

Formation & geological history

Formed from the accumulation and cementation of sand-sized mineral grains or rock fragments (clasts). Typically forms in desert, river, or coastal environments over millions of years.

Uses & applications

Commonly used as a building material, in the manufacture of glass (if high silica), and as a reservoir rock for oil, gas, and groundwater.

Geological facts

Sandstone makes up about 20% to 25% of all sedimentary rocks on Earth. It is famous for creating dramatic landscapes like the Grand Canyon and Antelope Canyon.

Field identification & locations

Identify in the field by its 'sandpaper' feel; if you rub it, small grains may flake off. Look for visible layering (bedding). It is found globally in sedimentary basins.