Opal rainbow 2mm sphere

Compatible with COE 33 / borosilicate glass

These 2mm spheres might be really small, but they'll still catch your eye with their bright rainbow fire. Like all of our rainbow opals, these spheres have a clear transparent base and flash the colors of the rainbow with brilliant red, yellow, blue, and green fire. Because of its transparency, the outline of the stone disappears in clear boro and flashes only the rainbow fire, creating a cool effect when you want to put the fire in the glass with less emphasis on the shape of the opal.