sedimentary
Sandstone
Arenite
AI-generated identification · may be incorrectHardness: 6-7 on Mohs scale; Color: Tan, beige, or grey with black specks; Luster: Dull/Earthy; Texture: Clastic, sandy feel; Structure: Massive or bedded.
- Hardness
- 6-7 on Mohs scale
- Color
- Tan, beige, or grey with black specks
- Luster
- Dull/Earthy
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Physical properties
Hardness: 6-7 on Mohs scale; Color: Tan, beige, or grey with black specks; Luster: Dull/Earthy; Texture: Clastic, sandy feel; Structure: Massive or bedded.
Formation & geological history
Formed through the accumulation and cementation of sand-sized mineral grains or rock fragments, typically occurring in riverbeds, deserts, or coastal environments over millions of years.
Uses & applications
Widely used as a construction material, for architectural facades, paving stones, and as an abrasive in industrial manufacturing.
Geological facts
Sandstone can preserve fossil footprints and ripple marks from ancient environments; it makes up about 20% of all sedimentary rocks on Earth.
Field identification & locations
Identify by its gritty, sandpaper-like texture. Common in regions with ancient sedimentary basins. Collectors often look for unique erosion patterns or fossil inclusions.
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