Bologna stone

Bologna stone

▪ magic stone
      any of the dense, silvery white stones first found (1603) on Mount Paderno, near Bologna, by an Italian cobbler-alchemist, Vicenzo Cascariolo, who synthesized from them a luminescent material that glowed at night after being exposed by day to the Sun. Originally thought to be the philosopher's stone that was believed capable of transmuting base metals into gold, Bologna stone ultimately was shown to be the mineral barite, barium sulfate.

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  • Bologna stone — Bologna Bo*lo gna, n. 1. A city of Italy which has given its name to various objects. [1913 Webster] 2. A Bologna sausage; also informally called {baloney}. [1913 Webster] {Bologna sausage} [It. salsiccia di Bologna], a large sausage made of… …   The Collaborative International Dictionary of English

  • bologna stone — noun or bolognan stone Usage: usually capitalized B Etymology: Bologna (I) or Bolognan (I); from its discovery near Bologna, Italy : the mineral barite when found in roundish masses composed of radiating fibers, being phosp …   Useful english dictionary

  • Bologna — Bo*lo gna, n. 1. A city of Italy which has given its name to various objects. [1913 Webster] 2. A Bologna sausage; also informally called {baloney}. [1913 Webster] {Bologna sausage} [It. salsiccia di Bologna], a large sausage made of bacon or ham …   The Collaborative International Dictionary of English

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  • bologna phosphorus — noun or bolognian phosphorus Usage: usually capitalized B Etymology: Bologna (stone) : a phosphorescent sulfide of barium made by reducing Bologna stone or other barium sulfate * * * Bologna phosphorus noun Barium sulphide • • • Main Entry: ↑ …   Useful english dictionary

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