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

Kilter (MIR15.JRG)
By Jeff R. Graham
Copyright 2004
94.4% Light Return
Angles for R.I. = 1.54
28 facets + 12 facets on girdle = 40
4-fold symmetry
96 index
L/W = 1.000 P/W = 0.435 C/W = 0.203
H/W = (P+C)/W+0.02 = 0.657
P/H = 0.661 C/H = 0.309
Vol./W^3 = 0.267

Addition # 9 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is interesting and works well in about any material. It works well in Garnet and Sapphire. Note: The corners are just cut in and can vary, make them as close to the diagram as you can. A table can be cut to meet C5 on a large stone.

 

 

 

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