sedimentary

Travertine

Travertine (Calcium Carbonate, CaCO3)

AI-generated identification · may be incorrect

Hardness of 3 on the Mohs scale, colors range from white and tan to cream and rust, with a vitreous to dull luster. It features a porous, fibrous, or concentric crystal structure with no notable cleavage and a specific gravity around 2.5-2.7.

Identified October 17, 2026More sedimentary →

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Physical properties

Formation & geological history

Formed by the precipitation of carbonate minerals from supersaturated hydrothermal waters, typically around hot springs or limestone caves. It develops across various geological eras and is actively forming today.

Uses & applications

Widely used in the construction industry for floor tiles, wall cladding, and paving, as well as historically in monumental architecture like the Colosseum.

Geological facts

Travertine is a terrestrial limestone variety that often preserves plant fossils and ancient artifacts within its porous layers. Its distinctive pitted texture is frequently filled during manufacturing for interior flooring.

Field identification & locations

Easily identified in the field by its distinctive vesicular or porous texture and reaction to hydrochloric acid due to its carbonate composition. Common global deposits are found in Italy, Turkey, and the United States.