Aurora Borealis or Mystic White Topaz faceted rectangle beads measure approximately 8x6.5mm to 9x7mm in size and have a symmetrical shape with a metallic coating providing a oil in water iridescent effect on this extremely brilliant gem body. The beads are transparent with metallic purple, blue, and mint hues, and the gems are a highly refractive with excellent make, great heft, and rich color.