sedimentary
Sandstone
Arenite
AI-generated identification · may be incorrectHardness: 6-7 Mohs; Color: Tan, brown, yellowish-orange; Luster: Dull/Earthy; Crystal structure: Granular/Clastic; Cleavage: None/Fragmental; Specific Gravity: 2.2-2.8
- Hardness
- 6-7 Mohs
- Color
- Tan, brown, yellowish-orange
- Luster
- Dull/Earthy
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Physical properties
Hardness: 6-7 Mohs; Color: Tan, brown, yellowish-orange; Luster: Dull/Earthy; Crystal structure: Granular/Clastic; Cleavage: None/Fragmental; Specific Gravity: 2.2-2.8
Formation & geological history
Formed by the accumulation and cementation of mineral particles or rock fragments (clasts) usually silicate-based. Deposits typically occur in deserts, riverbeds, and ocean basins over millions of years.
Uses & applications
Primarily used as a building material, paving stones, and for ornamental purposes. In industry, high-silica sandstone is used in glass manufacturing.
Geological facts
Sandstone makes up about 20% to 25% of all sedimentary rocks on Earth. Famous geological formations like the Grand Canyon are primarily composed of sandstone layers.
Field identification & locations
Identify in the field by its gritty, sand-like texture when rubbed and visible layered bedding. It is found globally in regions with historical alluvial or desert environments.
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Sandstone or Siltstone
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