Golden Iridescent Acrylics may be used alone or with other colors, gels and mediums. Iridescent Pearl is extremely useful for mixing with other colors for pearl-like qualities. The Iridescent colors are very resistant to fading and will not oxidize or t arnish. Most Iridescent Acrylics are available in fine and coarse. Coarse Iridescents offer a range of highly reflective pigments including stainless steel and gold mica flakes. Fine Iridescent Colors offer a smooth velvety finish and blend well with ot her colors. Golden Interference Acrylic Colors offer a unique "interference flip" when viewed from different perspectives. Interference Colors flip between a bright opalescent color and its opalescent complement. When applied over white or lighter surfa ces, the Interference Color is less obvious and the "flip" effect is more obvious. When applied over black or darker surfaces, the Interference Color is more obvious and the "flip" effect is less obvious. Adding a very small amount of black to Interfere nce Colors produces deeper opalescent effects.