
Flowstones are composed of sheetlike deposits of calcite formed where water flows down the walls or along the floors of a cave. They are typically found in `solution caves`, in limestone, where they are the most common speleothem. However, they may form in any type of cave where water enters that has picked up dissolved minerals. Flowstones are .....
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mineral deposit found in `solution` caves in limestone. Flowing films of water that move along floors or down positive-sloping walls build up layers ... [1 related articles]
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http://www.britannica.com/eb/a-z/f/39

Calcium carbonate formed by mineral-rich water that deposits the dissolved mineral on the walls of caverns and cliffs, forming a smooth and humpy growth. As long as there is water flowing down, the layer of flowstone accumulates.
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General term for deposits formed by dripping and flowing water on walls and floors of caves.
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a layered deposit of calcium carbonate, CaCO, left by thin sheets of flowing water, as in a cave. Cf. dripstone.
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