DANIEL SMITH Extra Fine Watercolor 15ml Paint Tube, Iridescent Goldstone DANIEL SMITH is the Innovative Manufacturer of Beautiful Watercolors for Artists Worldwide, and makes the largest range of watercolors of any manufacturer, more than 240 colors. The 240+ color collection includes the exciting PrimaTek watercolors made from minerals (like Amethyst) plus other unique colors (like Moonglow) not available elsewhere, and Luminescent Watercolors which allow artists to capture the luminescent colors that exist in nature that regular watercolors cannot capture! Iridescent Goldstone is a rich gold with a slight reddish undertone. Iridescent colors reflect light and their semi-transparent quality adds a fascinating sense of depth to your work. Why Luminescent Watercolors? Nature has optical surprises in the colors that you see in birds feathers, insects, fish, and seashells, many flowers also have a pearly, dewy sheen to them. Consider the iridescence of a snail's trail or a silvery spider's web. Other things that also have a sparkle, or glow depending on the light, a silvery or golden moon, clouds aglow at sunset, rainbows, the sparkle of snow and ice, and glint of water reflections. Dont forget the sheen of metals like pewter, copper, silver, and gold. There are also mythic subjects that are often thought of as having a special iridescence to them such as fairies, dragons, mermaids and other fantasy figures. DANIEL SMITH Luminescent Watercolors add that touch of special color found in nature that regular colors cannot match. They're made from mica pigment, thin transparent particles coated with highly reflective metal oxides. Luminescent Watercolors show best as glazes over darker colors and are excellent mixed with other colors adding a bit of their luminescent glow. Excellent Lightfastness, Transparent, Granulating, Non-staining PW 20, PW 6, Conforms to ASTM D4236