30.011 Pentazag

  • Giacomini, Afton;Gems & Minerals, Jul 1971, p49;
  • L/W=1.051
  • H/W=0.693
  • Vol/W^3=0.242
  • 41+5 Facets
  • Gear: 120
6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 <120> W W T T L L U U C C P P PC 30.011 Pentazag Giacomini, Afton; Gems & Min, Jul 71, p49 Angles for R.I. = 1.540 41 facets + 5 girdles 5-fold symmetry; 120 index L/W = 1.051 T/W = 0.539 U/W = 0.514 P/W = 0.478 C/W = 0.200 Vol/W³ = 0.242 pc30011.asc