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Travertine
2005-05-25 11:11:44

Travertine is a white concretionary form of calcium carbonate that is usually hard and semicrystalline. It is deposited from the water of mineral springs (especially hot springs) or streams holding lime in solution. Extensive deposits exist at Tivoli, Italy, near Rome. The largest building in the world constructed largely of travertine is the Colosseum in Rome, Italy. Another notable building...

Word of the Day
saggar
  • A ceramic container used inside a fuel-fired kiln to protect pots from the flame.
The word 'saggar' may come from 'safeguard'.
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