1.706 Foursight BCA

  • Hamer| John;Personal communication 2017;
  • L/W=1
  • H/W=0.591
  • Vol/W^3=0.197
  • 37+16 Facets
  • Gear: 96
  • Remarks: BCA=Below the Critical Angle
12 24 36 48 60 72 84 <96> L L T T W W U U C C P P a b c d T a b 1 g 2 3 1 2 a b c d a b c d T a b 1 g 2 3 1 2 a b c d PC 01.706 Foursight. BCA. Designed by J Hamer. March 2013. Copyright assigned to the public domain. Angles for R.I. = 1.540 37 facets + 16 girdles 4-fold symmetry; 96 index L/W = 1.000 T/W = 0.318 U/W = 0.318 P/W = 0.343 C/W = 0.219 Vol/W³ = 0.197 pc01706.asc
136.90°03-15-27-39-51-63-75-87Cut to centrepoint
g90.00°03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93Size stone
235.00°09-33-57-81Meet 1, g. Level girdle
337.61°21-45-69-93Meet 1, g. Level girdle
a35.00°09-21-33-45-57-69-81-93Level girdle.
b37.43°15-39-63-87Meet a, g. Level girdle.
c38.90°03-27-51-75Meet a, g. Level girdle.
d24.59°03-27-51-75Meet c, a
T0.00°TableMeet d, a

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