O is for Opalescent Glass

Opalescent Glass is a generalized term for clear and semi-opaque pressed glass. It evolved in the late 1800's during the Art Nouveau period, and was patented in 1879 by American artist John LaFarge. The opalescent effect is produced by adding bone ash during the cooling process of glassmaking resulting in a milky look that illuminates golden red tones when held up to light. Louis Comfort Tiffany experimented with opalescent glass in his magnificent stained glass during the 1880's.

Look for its loveliness in pieces of milk and pattern glass. I guarantee its beauty will impress and be admired for years to come!