sedimentary

Sedimentary Sandstone

Arenite (Sedimentary Rock)

AI-generated identification · may be incorrect

Hardness: 6-7 Mohs; Color: Tan, brown, or grayish-green as shown; Luster: Dull/Earthy; Texture: Granular and clastic; Structure: No visible bedding in this small piece, but rough to touch like sandpaper.

Hardness: 6-7 Mohs
Color: Tan, brown, or grayish-green as shown
Luster: Dull/Earthy

Identified July 19, 2026More sedimentary →

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Physical properties

Formation & geological history

Sand-sized grains of mineral, rock, or organic material are deposited by water, wind, or ice and then lithified through compaction and cementation. Common in ancient river beds, beaches, and deserts.

Uses & applications

Primarily used in construction for building stone, road base, and as a reservoir rock in the petroleum industry. Also used for decorative landscape stones.

Geological facts

Sandstone is one of the most common types of sedimentary rock and accounts for about 20% of all sedimentary rocks on Earth's crust. It often preserves fossils and ripple marks from ancient environments.

Field identification & locations

Identify in the field by its sandy, abrasive texture when rubbed. It can often be scratched by steel and handles like coarse-grit sandpaper. Look for it in outcrops with visible horizontal layering.