
sedimentary
Travertine
Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness of 3 on the Mohs scale, typically white, tan, cream, or rust colored. Exhibits a fibrous or concentric luster and a massive or microcrystalline structure.
Identified More sedimentary →
Explore Travertine in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 3 on the Mohs scale, typically white, tan, cream, or rust colored. Exhibits a fibrous or concentric luster and a massive or microcrystalline structure.
Formation & geological history
Formed by the precipitation of carbonate minerals from supersaturated waters, often around hot springs or limestone caves.
Uses & applications
Widely used in architecture for flooring, wall cladding, and paving due to its durability and aesthetic appeal.
Geological facts
Famous structures like the Roman Colosseum were built largely using travertine. It features characteristic pitted holes and troughs formed by trapped gas bubbles.
Field identification & locations
Identified by its fibrous layered texture, porosity, and effervescence when exposed to hydrochloric acid. Commonly found in Italy, Turkey, and the United States.
More like this
Other sedimentary specimens
Fossil-bearing concretion, possibly containing a fossil shell or other organic inclusion
Calcareous concretion; exact fossil and host-rock composition are not identifiable from the image
fossil
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary