Beryl (Aquamarine, Emerald, Helidore, Bixbite, Goshenite, Morganite, Golden Beryl)

Crystal Glitter 88 (MC114.JRG)
By Jeff R. Graham
Copyright 2006
79.4% Light Return
Angles for R.I. = 1.56
105 facets + 8 facets on girdle = 113
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.350 T/L = 0.350 P/W = 0.476
C/W = 0.223 H/W = (P+C)/W+0.02 = 0.719 P/H = 0.662 C/H = 0.310 Vol./W^3 = 0.262

Addition # 12 - Cut in refractive indexes 1.62 to 2.14 with no changes. This works well in light to medium saturated materials. I designed this for aquamarine and it will also work well in Tourmaline. It is fairly easy to cut.

 

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