sedimentary
Sandstone
Arenite
AI-generated identification · may be incorrectHardness: 6-7 Mohs; Color: Tan, grey, white, or buff; Luster: Dull or earthy; Crystal structure: Clastic (composed of sand-sized grains); Cleavage: None; Specific Gravity: 2.2-2.8
- Hardness
- 6-7 Mohs
- Color
- Tan, grey, white, or buff
- Luster
- Dull or earthy
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Physical properties
Hardness: 6-7 Mohs; Color: Tan, grey, white, or buff; Luster: Dull or earthy; Crystal structure: Clastic (composed of sand-sized grains); Cleavage: None; Specific Gravity: 2.2-2.8
Formation & geological history
Formed through the accumulation and cementation of mineral particles or rock fragments (sand) in marine or terrestrial environments over millions of years.
Uses & applications
Commonly used in construction as building stone, flagstone for paving, as a source of silica for glassmaking, and in grindstones.
Geological facts
Sandstone is one of the most common types of sedimentary rock and often preserves fossils and ripple marks from ancient riverbeds or beaches.
Field identification & locations
Identify by its gritty, sandpaper-like texture and visible grains. Often found in layered formations in canyons, cliffs, and quarries globally.
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