Glass Alchemy
Cobalt-1
Vibrant medium-light cobalt blue suited for sculpture, hobnails, and beads; work in a neutral flame to avoid gray streaks from reduction.
Outcomes
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Vibrant cobalt blueWork in a neutral flame; the second lightest of the GA cobalt range, suitable for small sculpture, hobnails, and beads.
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Gray streaks (under-reduced)Reduction causes unwanted gray streaks in the glass — avoid reducing this color.
Working notes
- Never reduce — reduction causes gray streaks.