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

Crystal Mine (MC105.JRG)
By Jeff R. Graham
Copyright 2006
79.6% Light Return
Angles for R.I. = 1.54
121 facets + 8 facets on girdle = 129
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.411 T/L = 0.411 P/W = 0.519
C/W = 0.217 H/W = (P+C)/W+0.02 = 0.756 P/H = 0.687 C/H = 0.287 Vol./W^3 = 0.304

Addition # 12 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is designed for Beryl and Quartz. It works well in light to medium saturations. I would recommend a 10mm or larger stone and it is especially good for Aquamarine.

 

 

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