Faceting Design Diagram: Evince – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


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

Jeff Graham Facet Design

Jeff Graham Facet Design

Evince (MIR60.JRG)
By Jeff R. Graham
Copyright 2005
93.5% Light Return
Angles for R.I. = 1.54
25 facets + 6 facets on girdle = 31
6-fold symmetry
96 index
L/W = 1.155 T/W = 0.266 T/L = 0.231 P/W = 0.435 C/W = 0.181 H/W = (P+C)/W+0.02 = 0.636 P/H = 0.684 C/H = 0.285 Vol./W^3 = 0.214

Addition # 10 – Cut this in refractive indexes 1.54 to 1.93 with no changes. This is outstanding in light to medium saturated materials. It makes great earrings and is a lot of fun to cut.

Jeff Graham Facet Design

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.