13.072 Liam

  • Maloney, William J Jr;Lapidary Journal, Aug 1972, p748;
  • L/W=1.020
  • H/W=0.736
  • Vol/W^3=0.210
  • 40+FS Facets
  • Gear: 72
  • Remarks: Smooth dome crown w/flat circles
6 12 18 24 30 36 42 48 54 60 66 <72> W W L L C C P P PC 13.072 Liam Maloney, William J Jr; Lapidary J, Aug 72, p748 Smooth dome crown w/flat circles Angles for R.I. = 1.540 63 facets + 30 girdles 3-fold, mirror-image symmetry; 72 index L/W = 1.019 P/W = 0.436 C/W = 0.274 Vol/W³ = 0.210 pc13072w.asc