sedimentary

Sandstone (Quartzose Sandstone)

Clastic sedimentary rock (primarily SiO2)

AI-generated identification · may be incorrect

Hardness: 6-7 on Mohs scale; Color: Tan, beige, or light grey; Luster: Dull/Earthy; Crystal structure: Clastic/Granular; Cleavage: None; Specific gravity: approx 2.0-2.6

Hardness: 6-7 on Mohs scale
Color: Tan, beige, or light grey
Luster: Dull/Earthy

Identified April 19, 2026More sedimentary →

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Physical properties

Hardness: 6-7 on Mohs scale; Color: Tan, beige, or light grey; Luster: Dull/Earthy; Crystal structure: Clastic/Granular; Cleavage: None; Specific gravity: approx 2.0-2.6

Formation & geological history

Formed through the accumulation and cementation of sand-sized mineral grains or rock fragments. Occurs in diverse environments like deserts, riverbeds, and beaches over millions of years.

Uses & applications

Commonly used in construction as a building material, paving, and decorative garden stone. Certain types are used as abrasive materials in industrial processes.

Geological facts

Sandstone records the history of Earth's landscape; the cross-bedding within sandstone layers can reveal ancient wind and water current patterns.

Field identification & locations

Identify by its gritty texture (feels like sandpaper) and visible grains. Often found in riverbeds or as rounded cobbles in landscaping. Look for layered structures in larger outcroppings.