sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)

Hardness: 6-7 on the Mohs scale (depending on cementation); Color: Varies widely including tan, brown, yellow, red, grey, and white; Luster: Dull to earthy; Crystal structure: Clastic (composed of mineral particles or rock fragments); Cleavage: None; Specific Gravity: 2.2-2.8

Hardness: 6-7 on the Mohs scale (depending on cementation)
Luster: Dull to earthy

Identified August 5, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed by the accumulation, compaction, and cementation of mineral particles or rock fragments, most commonly quartz and feldspar, typically deposited by water, wind, or ice in environments such as deserts, rivers, and beaches over millions of years.

Uses & applications

Widely used in construction as a building material, paving stone, and for decorative facing, as well as in the manufacture of glass and abrasives.

Geological facts

Sandstone is one of the most common sedimentary rocks on Earth and is famous for forming striking natural geological landmarks such as Zion Canyon and Petra.

Field identification & locations

Can be identified in the field by its characteristic grainy texture, visible sand-sized grains, and sedimentary layering. Found worldwide in regions with ancient deserts, riverbeds, or shallow marine environments.