the.com/travertine

Limestone that grew up watching mineral springs drip — now it's a billionaire's bathroom floor.

means A banded, often porous form of limestone deposited by mineral-rich springs and used as a decorative building stone.

from From Italian travertino, an alteration of the older tivertino, which traces back to Latin lapis tiburtinus — 'stone of Tibur,' the ancient town now called Tivoli, near Rome, where the Romans quarried it abundantly for buildings like the Colosseum.

slow build
Forms when calcite precipitates from hot or cold springs
roman flex
The Colosseum is built largely from it
the holes
Natural pits from escaping gas during formation
still growing
Forms today around active geothermal springs and waterfalls
name origin
Named for Tivoli, Italy, ancient Latin Tibur
for instance

pamukkale — white travertine terraces in turkey formed by thermal springs, unesco world heritage site since 1988

mammoth hot springs — active travertine terraces in yellowstone national park, wyoming, built by geothermal water deposits

huanglong — chinese travertine landscape in sichuan province with 3,400+ terraced pools, unesco site since 1992

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