Highly versatile iridescent powders that are non-toxic, non-tarnishing and lightfast. Colourcraft pearl powders are not based on metallic pigments so are completely safe to use. They can be mixed with the most viscous binders, used on clay to reproduce the look of precious metals, hammered copper and pottery and in candle making card making etc. They will withstand temperatures up to 8000C. When used with Adva-print fabric medium, they can also be used for working on fabric. The colour of the interference (duo) colours changes with the viewing angle.