1.715 Ring of Fire Opt

  • Hamer| John;Personal communication 2017;
  • L/W=1
  • H/W=0.239
  • Vol/W^3=0.133
  • 82+16 Facets
  • Gear: 96
  • Remarks: For very thin| light rough
6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 <96> W W U U L L T T C C P P a b T g 1 2 3 4 1 2 a b a b T g 1 2 3 4 1 2 a b PC 01.715 Ring of Fire. Opt. Designed by J Hamer. September 2014. Copyright assigned to the public domain. Angles for R.I. = 1.540 82 facets + 16 girdles 16-fold, mirror-image symmetry; 96 index L/W = 1.000 T/W = 0.674 U/W = 0.674 P/W = 0.153 C/W = 0.068 Vol/W³ = 0.133 pc01715.asc
g90.00°03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93Size stone
147.00°03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93Position girdle
243.00°96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90Meet 1, g
312.00°96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90Meet 2, 1
40.00°CuletJudge size by eye
a24.70°03-09-15-21-27-33-39-45-51-57-63-69-75-81-87-93Level girdle
b22.50°96-06-12-18-24-30-36-42-48-54-60-66-72-78-84-90Meet a, g
T0.00°TableMeet b, a

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