Ember ^6Ember is a stunning iron red crystalline glaze. Capable of producing everything from a cherry red matte to a dramatic copper toned crystalline gloss (and everything in between). Works great on all our cone 6 clays but most dramatic results will be found on light colored clays, like Iceman. No special cooling required. Slow cooling may lead to different results. Each batch is hand tested and always free of Barium, Lead, or Cadmium.