Tufa
A rock classification type
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About Tufa
Name:
Etymol: Italian tufo.
A limestone formed when carbonate minerals precipitate out of ambient temperature water.
A chemical sedimentary rock composed of calcium carbonate, formed by evaporation as a surficial, spongy, porous, semifriable incrustation around the mouth of a hot or cold spring or seep, or along a stream carrying calcium carbonate in solution, and exceptionally as a thick, bulbous, concretionary or compact deposit in a lake or along its shore. It may also be precipitated by algae or bacteria. The hard, dense variety is travertine. The term is rarely applied to a similar deposit consisting of silica. It is not to be confused with tuff.
A chemical sedimentary rock composed of calcium carbonate, formed by evaporation as a surficial, spongy, porous, semifriable incrustation around the mouth of a hot or cold spring or seep, or along a stream carrying calcium carbonate in solution, and exceptionally as a thick, bulbous, concretionary or compact deposit in a lake or along its shore. It may also be precipitated by algae or bacteria. The hard, dense variety is travertine. The term is rarely applied to a similar deposit consisting of silica. It is not to be confused with tuff.
Unique Identifiers
Mindat ID:
50847
Long-form identifier:
mindat:1:1:50847:4
Similar Names
Classification of Tufa
Sub-divisions of Tufa
Common Associates
Internet Links for Tufa
mindat.org URL:
https://www.mindat.org/min-50847.html
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Benson, Cochise County, Arizona, USA