
Sedimentary (Synthetic)
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Hardness: 3-7 Mohs (variable by aggregate); Color: Grey/Blue-grey; Luster: Dull/Earthy; Structure: Granular/Porous; Specific Gravity: 2.2-2.5
- Hardness
- 3-7 Mohs (variable by aggregate)
- Color
- Grey/Blue-grey
- Luster
- Dull/Earthy
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Physical properties
Hardness: 3-7 Mohs (variable by aggregate); Color: Grey/Blue-grey; Luster: Dull/Earthy; Structure: Granular/Porous; Specific Gravity: 2.2-2.5
Formation & geological history
Man-made through the hydration of Portland cement mixed with water, sand, and gravel. It is a modern industrial 'rock' formed through chemical precipitation and lithification in molds.
Uses & applications
Used extensively in construction for landscaping, driveways, walkways, and patios due to its durability and uniform shape.
Geological facts
While not a natural geological formation, concrete is the most widely used man-made material on Earth. It chemically mimics the process of natural conglomerate rock formation.
Field identification & locations
Identify by its uniform rectangular shape, porous grey texture, and lack of natural crystalline veins. Commonly found in residential yards and public parks.
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