Calcarone sentence example

calcarone
  • A semicircular or semi-elliptical pit (calcarone) about 33 ft.
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  • A calcarone with a capacity of 28,256 cub.
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  • A calcarone that is to be used all the year round must be at least 220 yds.
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  • The second method is analogous to the calcarone method of liquation: the ore is placed in a limekiln-like furnace over a mass of kindled fuel to start a partial combustion of the mineral, and the process is so regulated that, by the heat generated, the unburnt part is decomposed with elimination of sulphur, which collects in the molten state on an inverted roof-shaped sole below the furnace and is thence conducted into a cistern.
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