calc-tufa(redirected from calc-tuff)
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calc-tu·fa(kălk′to͞o′fə, -tyo͞o′-) also calc-tuff (-tŭf′)
Calcareous tufa, a porous or spongy deposit of calcium carbonate found in calcareous mineral springs.
(Minerals) another name for tufa
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|Noun||1.||calc-tufa - a soft porous rock consisting of calcium carbonate deposited from springs rich in lime|