Fire Polish is a process that starts out with regular looking glass that is then machine faceted, which leaves sharp facet edges. To smooth them out, they are heated in a kiln or oven until the edges soften. The result is a beautiful, faceted, crystal-like bead.
Czech Fire Polished Beads
CZECH F/P 4mm TR. LT. AMETHYST ALUMINUM HALF COAT
F/P 4mm TR. LT. AMETHYST ALUMINUM HALF COAT
F/P 4mm LT. GOLD ALUMINUM HALF COAT