Opal white 4mm round coin

Compatible with COE 33 / borosilicate glass

Our round coins are flat and polished on both sides and around the edges, and are about 1mm thick. These 4mm round coins are perfect for projects needing tiny accents that really catch the eye. Don't let their size fool you---each stone flashes a rainbow of intense fire.
Like all of our white opals, they have an opaque white base with brilliant flashes of red, yellow, and pink fire and subtler hints of blue and green. The base color of white opals can vary from fairly opaque to solid white.