Greasy Glass
Purple Rainbow (unique)
A transparent striking purple with silver-based rainbow effects; work between neutral and oxidizing to keep transparency, then strike with a slightly reducing flame or kiln soak at 1080°F for 3–4 hours.
Outcomes
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Transparent purple with silver-based rainbow shimmer after strikingWork between neutral and oxidizing to maintain transparency. Strike with a slightly reducing flame or soak in the kiln at 1080°F for 3–4 hours. Raising kiln temperature is not always necessary — a soak at 1080°F is often sufficient.
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Loss of transparency if flame is too reducing during workingWorking in a too-reducing flame during shaping (rather than just at the strike phase) risks losing transparency in the purple.
Working notes
- Work between neutral and oxidizing during shaping to preserve transparency — do not work fully reducing.
- Raising kiln temperature beyond 1080°F is not always necessary; a soak at 1080°F for 3–4 hours is typically sufficient to strike.