21.030a Square-Diamond

  • Sept, Ed;Off the Dop, Sep-Oct 1997, v8n5p7;
  • L/W=1.000
  • H/W=0.785
  • Vol/W^3=0.303
  • 49+8 Facets
  • Gear: 96
6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 <96> W W T T L L U U C C P P SQUARE - DIAMOND ED SEPT MISSOULA, MT Angles for R.I. = 1.540 49 facets + 8 girdles 8-fold, mirror-image symmetry; 96 index L/W = 1.000 T/W = 0.426 U/W = 0.426 P/W = 0.489 C/W = 0.246 Vol/W³ = 0.303 pc21030a.asc