Faceting Design Diagram: Turbo Glitter – Zircon – Hyacinth, Starlite


Zircon (Hyacinth, Starlite)

Turbo Glitter Jeff Graham Facet Design Turbo Glitter Jeff Graham Facet Design

Turbo Glitter (MC118.JRG)
By Jeff R. Graham
Copyright 2006
80.8% Light Return
Angles for R.I. = 1.93
99 facets + 12 facets on girdle = 111
2-fold, mirror-image symmetry
96 index
L/W = 1.152 T/W = 0.881 T/L = 0.765 P/W = 0.575
C/W = 0.144 H/W = (P+C)/W+0.02 = 0.738 P/H = 0.778 C/H = 0.195 Vol./W^3 = 0.320

Addition # 2 – Cut in refractive indexes 1.93 to 2.14 with no changes. This is designed for Zircons, but it works reasonably well in R.I. 1.67 to 1.93. Note: The L/W can be left a little long and then cut in to match.

Turbo 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.