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tufasee travertine .
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tufatype of porous rock, 1770, from Italian tufa "tufa, porous rock," probably from Latin tufus, tophus "loose, porous volcanic rock," said to be an Oscan-Umbrian loan-word. Related: T [..]
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tufaCalcareous mound formed from mineral-rich water that deposits the calcium carbonate on the growing mound. Not to be confused with tuff. See also Sinter.
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tufaSolidified volcanic ash. Also known as tuff.
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tufaA porous rock
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tufaTufa is a soft volcanic stone, used in making grottos.
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tufathe calcareous (chalky, containing calcium carbonate) and siliceous (flinty, containing silica) deposits of springs, lakes, or ground water; also a rock composed of compacted volcanic ash: in architectural terms, tufa refers to a rough facing stone applied to buildings to give a rustic look.
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tufaCalcareous deposit from saturated limy waters.
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tufa(n) a soft porous rock consisting of calcium carbonate deposited from springs rich in lime(n) hard volcanic rock composed of compacted volcanic ash
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tufaA porous concretionary or compact form of calcium carbonate, which is deposited from solution around springs.
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tufaA porous rocky deposit formed in streams and in the ocean near the mouths of rivers.
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tufaGeological name for a soft lime stone, deposits near springs.
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