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

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

Crystal Mine Jeff Graham Facet Design Crystal Mine Jeff Graham Facet Design

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.

Crystal Mine Jeff Graham Facet Design

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

About the author
Jeff R. Graham
The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.
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