Where is Travertine found?
Calcium Carbonate (CaCO3)
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Open the appTravertine occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Travertine
Pamukkale, Turkey
Famous for its white terraces of travertine formed by hot springs.
Mammoth Hot Springs, Yellowstone National Park, USA
Extensive and active travertine terraces formed by geothermal waters.
Plitvice Lakes National Park, Croatia
Known for its stunning travertine barriers and waterfalls.
Tivoli, Italy
Historically significant source of travertine, used extensively in ancient Roman architecture.
Guangxi Province, China
Numerous karst landscapes with significant travertine deposits.
Collecting tips
- Look for Spring Deposits. Travertine is almost exclusively found in association with mineral springs, particularly hot springs or areas with significant groundwater discharge rich in calcium carbonate.
- Identify Terraces and Mounds. Active travertine deposition often forms distinctive terraced landscapes, mounds, or cascades as water flows and precipitates CaCO3.
- Check for Porosity. Its characteristic porous texture is a key identifier. Look for visible holes and cavities within the rock.
- Acid Test. Like all calcium carbonate rocks, travertine will effervesce (fizz) vigorously when a drop of dilute hydrochloric acid (HCl) is applied, releasing carbon dioxide gas. This is a definitive test for carbonate minerals.
Quick Check
- Color:
- White, cream, tan, brown, reddish-brown
- Luster:
- Dull to earthy
- Streak:
- White
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