A rainbow colored Melting Pot type of chalice is the best way to describe the AC Rainbow Explosion Chalice. There appears to be 4 primary pigment colors for the melting pot splotches. Orange, red, pink and turquoise blue. In the upper image there also appears to be additional yellow or golden pigment along the left edge. Some small areas of the surface can develop very dark almost black spots to tiny splotches. Small rough bumps occur in radiating rays from the corallite and these bumps can appear more creamish in coloration.