Calypso Green has a shimmery, pale almost minty green cast with a gold interference color. The opal series are not meant to be used for mixing as this will affect the translucency and interference attributes of these paints. The pigment particles are heavy and will settle easily, so make sure to stir the opals to get good pigment distribution. We like to think of the Opals as finishing touches, as they impart a jewel like effect. When painted over other light colors the effects are subtle, but when painted over darks, the metallic and interference properties will be more pronounced. Opal Calypso Green is another huge favorite amongst artists and is a unique color to Enkaustikos.