May React With
Selenium, Sulfur, Reactive (0009, 1009, 1019)
May have a dappled surface.
A copper glass. May have dark color reaction at interface with cadmium/selenium or sulfur glasses including 0125, 0120, 1120 and 0137. May have a color reaction with Reactive glasses such as 0009, 1009, 1019. Tests fired to a full fuse indicate that Glacier Blue Opalescent reacts, though not with the intensity of other copper bearing glasses such as 0216. For example, Reactions with 1009 and 0009 are lighter compared to those with 0216 while there are no visible reactions with 1019.