Round Fiber Optic Beads that are fiber optic quartz shaped into round beads. These are beautiful beads in that they transmit light in strange ways (chatoyant). Round Beads have a light center band that shifts based on your viewing angle resembling a cat's eye. Jewelry made with fiber optic beads will have a special beauty because of the unique optical effects of these beads. Strands are sold as temporarily strung.