Rock Identifier
Travertine (Calcium Carbonate (CaCO3)) — sedimentary
sedimentary

Travertine

Calcium Carbonate (CaCO3)

AI-generated identification · may be incorrect

Mohs hardness of 3, colors range from white to cream and tan, vitreous to dull luster, and exhibits a banded or fibrous crystal structure.

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Physical properties

Mohs hardness of 3, colors range from white to cream and tan, vitreous to dull luster, and exhibits a banded or fibrous crystal structure.

Formation & geological history

Formed by the precipitation of carbonate minerals from supersaturated hydrothermal waters, typically around hot springs or limestone caves.

Uses & applications

Widely used in architecture for flooring, wall cladding, and countertops, as well as decorative carvings and interior design.

Geological facts

Famous structures like the Roman Colosseum were built largely using travertine stone quarried in Italy.

Field identification & locations

Identified by its characteristic fibrous banding and effervescence when tested with dilute hydrochloric acid; commonly found in Italy, Turkey, and the US.