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A sulfur glass
which only occurs where Egyptian Blue is exposed
the metallic coating can prevent Steel Blue Opalescent stringer from fusing as completely compared to other opalescent styles
Low viscosity
Light/dark variations generally disappear on firing
BE - 0100 Black Opal Frit coe 90 A sulfur glassCold Characteristics Although termed an opal due to its almost total lack of light transmission, this is (in terms of its composition) actually a transparent glass. Working Notes Low viscosity. Will flow sooner and more than other glasses. In very thin sections the color may vary from reddish gray to bluish gray.
US$ 52.00
US$ 375.50