sedimentary
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
AI-generated identification · may be incorrectHardness: 6-7 on Mohs scale (due to quartz grains); Color: Brown, reddish-brown with visible banding; Luster: Dull to vitreous; Structure: Clastic, fine to medium-grained; Cleavage: None (fractures unevenly); Specific Gravity: 2.2-2.8
- Hardness
- 6-7 on Mohs scale (due to quartz grains)
- Color
- Brown, reddish-brown with visible banding
- Luster
- Dull to vitreous
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Physical properties
Hardness: 6-7 on Mohs scale (due to quartz grains); Color: Brown, reddish-brown with visible banding; Luster: Dull to vitreous; Structure: Clastic, fine to medium-grained; Cleavage: None (fractures unevenly); Specific Gravity: 2.2-2.8
Formation & geological history
Formed by the accumulation, compaction, and cementation of mineral particles or rock fragments, often in desert, river, or beach environments over millions of years.
Uses & applications
Used in construction, building stone, paving, and landscaping.
Geological facts
Sandstone often preserves ancient ripple marks and fossil tracks, offering a window into prehistoric environments.
Field identification & locations
Commonly found along riverbeds, beaches, and desert regions. Identified by its gritty texture and visible sand grains.
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