Rainbow Calsilica domed flatback Cabochon, no hole. 40x30mm Rainbow Calsilica. An assembled bright mix of colors usually in primary crayon type swirls or striping, low shine. Most of these stones being added are bright primary, red, yellow or blue, or pastel purple and green on white. One stone bead. Great to bead around, make into a brooch. Picture is a stock image of the actual stone, which all vary in coloring. I will try to add actual images if you would like a certain one or coloring in particular.