Sedimentary (Synthetic)

Concrete Paver (Artificial Cementitious Rock)

Hydrated Portland Cement Aggregate

AI-generated identification · may be incorrect

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

Identified April 23, 2026More sedimentary (synthetic) →

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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.