Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

9 Floating Rose (DOME19.JRG)
By Jeff R. Graham
Copyright 2007
85.3% Light Return
Angles for R.I. = 1.54
64 facets + 9 facets on girdle = 73
9-fold, mirror-image symmetry
72 index
L/W = 1.015 T/W = 0.248 T/L = 0.245 P/W = 0.421 C/W = 0.297
H/W = (P+C)/W+0.02 = 0.738 P/H = 0.571 C/H = 0.402
Vol./W^3 = 0.261

Addition # 13 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is nine sided and may take a special setting. It is designed for light to medium saturatedmaterial and has a very interesting flash pattern.

 

 

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