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flowstone

[floh-stohn] /ˈfloʊˌstoʊn/
noun, Petrology
1.
a layered deposit of calcium carbonate, CaCO 3 , left by thin sheets of flowing water, as in a cave.
Compare dripstone.
Origin
1920-1925
1920-25, Amer.; flow + stone
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Article for flow-stone

flowstone

mineralmineral deposit found in "solution" caves in limestone. Flowing films of water that move along floors or down positive-sloping walls build up layers of calcium carbonate (calcite), gypsum, or other cave minerals. These minerals are dissolved in the water and are deposited when the water loses its dissolved carbon dioxide and therefore its carrying ability. Flowstone is usually white or translucent but may be stained various colours by minerals dissolved in the water.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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