Man-made metamorphic-style composite

Terrazzo (Synthetic Composite Rock)

Cementitious or Epoxy Resin-bound Aggregates

Hardness: 3-7 (depending on aggregate); Color: Multi-colored with white/beige base; Luster: Polished/Vitreous; Structure: Clastic-like matrix with angular fragments; Specific Gravity: Approx. 2.4

Hardness: 3-7 (depending on aggregate)
Color: Multi-colored with white/beige base
Luster: Polished/Vitreous

Identified February 15, 2026More man-made metamorphic-style composite →

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Physical properties

Hardness: 3-7 (depending on aggregate); Color: Multi-colored with white/beige base; Luster: Polished/Vitreous; Structure: Clastic-like matrix with angular fragments; Specific Gravity: Approx. 2.4

Formation & geological history

An anthropogenic material created by embedding marble, quartz, granite, or glass chips into a cementitious or polymeric binder, then ground and polished to a smooth surface.

Uses & applications

Used primarily in construction for flooring, countertops, and wall treatments due to its durability, ease of maintenance, and aesthetic pattern.

Geological facts

Terrazzo originated in 16th-century Venice as a way for mosaic workers to reuse marble scraps. It is considered one of the earliest sustainable or 'upcycled' building materials.

Field identification & locations

Identify by its 'confetti' or mosaic-like appearance with visible angular chips suspended in a solid background. It is never found in nature and is ubiquitous in mid-century modern architecture and public buildings.

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