Aurora Borealis Cyan Copper is a CBS premium dichroic coating. This coating is applied to Uroboros COE 96 colored glass Straw yellow #906. The colored glass shows through between the rainbow stripes. This glass is coated specially for Dichroic, Inc. This coating is offered in 4x4 inch squares only. Please Note: Photos of this glass show mostly transmitted colors of the coating rather than the reflective colors.