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

Point Of Cross (B11.JRG)
By Jeff R. Graham
Copyright 1999
85.8% Light Return
Angles for R.I. = 1.54
81 facets + 8 facets on girdle = 89
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.505 T/L = 0.505
P/W = 0.503 C/W = 0.166
H/W = (P+C)/W+0.02 = 0.689
P/H = 0.730 C/H = 0.241
Vol./W^3 = 0.275

Addition # 5 - This is pretty easy to cut and works well in most medium to light materials. The table can be roughed in before cutting C5 to help with C5 placement. I especially like this in orange citrine. This can be cut in R.I. 1.54 to 1.76 (90.3%) with no changes.

 

 

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