Black Opal (100) Billet
Black is the least viscous of all glass colors, therefore it will flow faster than other colors. Take note of this when firing with the glasses in the white family, as these are the most viscous colors.
Bullseye billets are an excellent alternative to lead crystal. Each billet is approximatley 5" x 10" x 0.75". Images demonstrate single, double and triple thickness.
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