sedimentary
Travertine
Terrestrial Sedimentary Limestone (CaCO3)
Hardness: 3-4 (Mohs); Color: Tan, beige, brown; Luster: Dull to pearly; Structure: Pitted, porous, often banded (vuggy texture); Specific Gravity: 2.4-2.7
- Hardness
- 3-4 (Mohs)
- Color
- Tan, beige, brown
- Luster
- Dull to pearly
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Physical properties
Hardness: 3-4 (Mohs); Color: Tan, beige, brown; Luster: Dull to pearly; Structure: Pitted, porous, often banded (vuggy texture); Specific Gravity: 2.4-2.7
Formation & geological history
Forms by the precipitation of carbonate minerals from solution in ground and surface waters, or geothermally heated hot springs. Primarily Quaternary to Holocene in age.
Uses & applications
Extensively used in construction for flooring, wall cladding, and bathroom tiles. Frequently used in sculpture and historical architecture.
Geological facts
The Colosseum in Rome is built mostly of travertine. It is unique among limestones because it forms in a terrestrial environment rather than a marine one.
Field identification & locations
Identify by its characteristic small pits and holes (vugs), beige/tan coloration, and its reaction (fizzing) with dilute hydrochloric acid. It is commonly found in Italy, Turkey, and Mexico.
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