Tag:material=tufa
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 material = tufa
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A soft sedimentary rock, similar to limestone, formed in fresh water, springs, rivers, especially in  karst around waterfalls
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| Group: properties |
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| Status: in use |
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The gothic arch built of tufa / travertine
Tufa (and/or travertine) is a soft sedimentary rock, similar to limestone, formed by the chemical precipitation of calcium carbonate minerals from fresh water, typically in springs, rivers, and lakes, especially in karst around waterfalls.
Tufa is a building:material=* or a roof:material=* composed of a soft sedimentary rock.