04.012 Octagonal Cushion

  • Sleep, F E;Gems & Minerals, Jun 1972, p44;
  • L/W=1.200
  • H/W=0.515
  • Vol/W^3=0.357
  • 41+8 Facets
  • Gear: 96
12 24 36 48 60 72 84 <96> W W U U L L T T C C P P PC 04.012 Sleep, F.E.; Gems & Min, Jun 72, p44 Angles for R.I. = 1.540 41 facets + 8 girdles 2-fold, mirror-image symmetry; 96 index L/W = 1.200 T/W = 0.796 U/W = 0.596 P/W = 0.328 C/W = 0.165 Vol/W³ = 0.357 pc04012.asc