sedimentary
Sandstone
Arenite
AI-generated identification · may be incorrectHardness: 6-7 (Mohs/Quartz components); Color: Tan, brown, or buff; Luster: Dull/Earthy; Crystal structure: Granular/Clastic; Cleavage: None; Specific Gravity: 2.2-2.8
- Hardness
- 6-7 (Mohs/Quartz components)
- Color
- Tan, brown, or buff
- Luster
- Dull/Earthy
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Physical properties
Hardness: 6-7 (Mohs/Quartz components); Color: Tan, brown, or buff; Luster: Dull/Earthy; Crystal structure: Granular/Clastic; Cleavage: None; Specific Gravity: 2.2-2.8
Formation & geological history
Formed through the accumulation and cementation of sand-sized mineral particles or rock fragments in river beds, deserts, or marine environments over millions of years.
Uses & applications
Widely used as a building material, in landscaping, as a source for glass manufacturing (if high silica), and for stone art/sculpture.
Geological facts
Sandstone is often porous enough to hold large quantities of groundwater or oil, making it an essential aquifer or reservoir rock in geology.
Field identification & locations
Identify by its gritty, sandpaper-like feel and visible grains. Commonly found in coastal areas, deserts, and canyon walls. Widely available globally.
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