Although these mica powder appear solid white, when viewed at an angle you will see glorious iridescent colours. Important things to know when working with interference pigments. * They are very translucent. * The particular colour effect is angle dependent. * They can be mixed and blended with other colours. If blended with white they can disappear and the effect can be lost. They work best mixed with dark colours. * You can blend them with any translucent acrylic medium to create some stunning iridescent/interference products