Opalescent Glass - (Glass)

Opalescent Glass - (Glass)(1) A type of late nineteenth century art glass, made by covering a gather of colored glass with a layer of colorless glass containing bone ash and arsenic. The glass (parison) was inflated in a mold to produce raised decoration. When the parison was reheated, the raised areas became opalescent. (2) A type of glass resembling the iridescent gemstone opal, which was developed by Fredrick Carder (1863-1963) at Steuben Glass Works in Corning, New York.

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