Faceting Design Diagram: Gorgeous Crystal Glitter – Peridot


Peridot

Gorgeous Crystal Glitter Jeff Graham Facet Design

Gorgeous Crystal Glitter_jeff_graham_facet_design3

Gorgeous Crystal Glitter (MC123.JRG)
By Jeff R. Graham
Copyright 2006
85.5% Light Return
Angles for R.I. = 1.62
103 facets + 9 facets on girdle = 112
3-fold, mirror-image symmetry
96 index
L/W = 1.077 T/W = 0.400 T/L = 0.372 P/W = 0.492
C/W = 0.233 H/W = (P+C)/W+0.02 = 0.745 P/H = 0.661 C/H = 0.313 Vol./W^3 = 0.315

Addition # 12 – Cut in refractive indexes 1.62 to 2.14 with no changes. This is designed for Tourmaline, particularly light to medium saturations. It is pretty easy to cut and has a lot of sparkle.

Gorgeous Crystal Glitter 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.