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

Simple Surprise (MIR35.JRG)
By Jeff R. Graham
Copyright 2004
91.7% Light Return
Angles for R.I. = 1.54
37 facets + 6 facets on girdle = 43
6-fold, mirror-image symmetry
96 index
L/W = 1.155 T/W = 0.289 T/L = 0.250
P/W = 0.450 C/W = 0.156
H/W = (P+C)/W+0.02 = 0.627
P/H = 0.718 C/H = 0.250
Vol./W^3 = 0.216

Addition # 9 - This is actually best cut in a large stone and I like it very much in earrings (8-12mm). This is fun, fast and easy. About any material, including Garnets works well. Cut in refractive indexes 1.54 to 2.14 with no changes. Hint: By varying the C2 the flash can be changed for interesting effects, depending on the size of the stone.

 

 

 

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