07.039 Castle

  • Shand, Ian H R;Lapidary Journal, May 1983, p390;
  • L/W=1.000
  • H/W=0.629
  • Vol/W^3=0.256
  • 21+8 Facets
  • Gear: 64
8 16 24 32 40 48 56 <64> W W U U L L T T C C P P PC 07.039 Castle Shand, Ian H R; Lapidary J, May 83, p 390 Angles for R.I. = 1.540 21 facets + 8 girdles 4-fold, mirror-image symmetry; 64 index L/W = 1.000 T/W = 0.646 U/W = 0.646 P/W = 0.492 C/W = 0.124 Vol/W³ = 0.256 pc07039.asc