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


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

Blue Max (CHECK41.JRG)
By Jeff R. Graham
Copyright 2001
87.3% Light Return
Angles for R.I. = 1.54
65 facets + 12 facets on girdle = 77
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.169 T/L = 0.169
P/W = 0.485 C/W = 0.203
H/W = (P+C)/W+0.02 = 0.708
P/H = 0.685 C/H = 0.287
Vol./W^3 = 0.286

Addition # 6 – Cut this in refractive indexes 1.54 to 1.93 with no changes. I like this in any medium saturated material. This works well in most man- made corundum colors…


Random – Cosine – ISO

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.