Adding Sparkle to your glass when kiln firing or Flamework provides is a softer appear compared to Dichroic glass. It can be more precisely apply and you can re-fire and apply layers without adding thickness to the finish glass dimensions. There is a Difference between between these two metallic lusters, Mica Powders and Pearlescent Interference Colors, even though both can be applied using powder sifters:
Both forms of metallic applications to your fusible glass are powders and require you to wear a mask during use.
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