15.023 Brilliant Square (Blue Quartz)

  • Ferris, Elmer W;Lapidary Journal, Oct 1975, p1344;
  • L/W=1.000
  • H/W=0.718
  • Vol/W^3=0.267
  • 49+8 Facets
  • Gear: 96
12 24 36 48 60 72 84 <96> L L U U W W T T C C P P PC 15.023 Brilliant Square (Blue Quartz) Ferris, Elmer W; Lapidary J, Oct 75, p1344 Angles for R.I. = 1.540 49 facets + 8 girdles 4-fold, mirror-image symmetry; 96 index L/W = 1.000 T/W = 0.454 U/W = 0.454 P/W = 0.503 C/W = 0.195 Vol/W³ = 0.267 pc15023.asc