Czech Fire Polished Beads. Color: Lt Olivine/Lt Amethyst. 4mm Round. 50 Beads. In color Lt Olivine/Lt Amethyst, a combination of Light Olivine and Light Amethyst. In Czech Fire Polished beads, the shape called Round is actually more of an oval. Fire Polished beads are glass beads that are faceted by machine. The edges and surface are then...