1 x Mint 3mm Star Opal,Compatible with COE 33 / borosilicate glass
Our mint opal stars are opaque and flash primarily green, and yellow. The opals are flat on all sides and quite thin, so they are easy to encase. These opals do not require a special annealing cycle like the rough opals do. Just encase, keep warm in the kiln, and incorporate into your work.
