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Tufa facts for kids

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Mono lake tufa
Tufa columns at Mono Lake, California.

Tufa is a porous variety of limestone. It is formed by the precipitation of carbonate minerals from water at normal temperatures.

Geothermally heated hot springs sometimes produce similar (but less porous) carbonate deposits known as travertine.

Do not confuse with the rock made of volcanic ash, which is called tuff.

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Tufa Facts for Kids. Kiddle Encyclopedia.