sedimentary
Travertine
Terrestrial Sedimentary Calcite (CaCO3)
Hardness: 3-4 on Mohs scale; Color: Cream, tan, and white; Luster: Pearly to dull; Texture: Fibrous or concentric with small pitted holes (vugs); Cleavage: Perfect in three directions (mineral basis).
- Hardness
- 3-4 on Mohs scale
- Color
- Cream, tan, and white
- Luster
- Pearly to dull
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Physical properties
Hardness: 3-4 on Mohs scale; Color: Cream, tan, and white; Luster: Pearly to dull; Texture: Fibrous or concentric with small pitted holes (vugs); Cleavage: Perfect in three directions (mineral basis).
Formation & geological history
Formed by the rapid precipitation of calcium carbonate, often at the mouth of a hot spring or in a limestone cave. It is a terrestrial sedimentary rock, meaning it forms on land rather than in the ocean.
Uses & applications
Widely used as a building material for flooring, wall cladding, and bathroom vanities. In small specimens, it is a popular collector's item or decorative stone.
Geological facts
The Colosseum in Rome is the largest building in the world constructed mostly of travertine. Modern deposits are still forming today at sites like Yellowstone National Park.
Field identification & locations
Identify in the field by its distinct banded appearance and reaction (effervescence) when exposed to a weak acid like vinegar. Commonly found in Italy, Turkey, and Mexico.
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