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

Antwerp (CHECK57.JRG)
By Jeff R. Graham
Copyright 2003
84.6% Light Return
Angles for R.I. = 1.54
35 facets + 8 facets on girdle = 43
2-fold, mirror-image symmetry
96 index
L/W = 1.500 T/W = 0.500 T/L = 0.334
P/W = 0.451 C/W = 0.234
H/W = (P+C)/W+0.02 = 0.705
P/H = 0.640 C/H = 0.332
Vol./W^3 = 0.543

Addition # 8 - Cut in refractive indexes 1.54 to 2.14 with no changes. This works well in about any material and is quite good for closed "c" axis Tourmaline.

 

 

 

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