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Cone 06: (1st image) Black Iris is an opaque black base glaze with a variety of golden/yellow/brown crystals.
Cone 6: (2nd image) Base glaze remains – crystals fade and melt. Enhanced mobility. Surface issues may occur.
Jungle Gems™ Crystal Glazes transform in the kiln when the small pieces of glass frit burst into color and intricate patterns during the firing process. Artists use these beautiful glazes to add dramatic, colorful effects to their creations.