Faceting Design Diagram: “Z” Rocker – Feldspar – Bytonite, Labradorite, Spectrolite, Orthoclase


Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)

"Z" Rocker Jeff Graham Facet Design

"Z" Rocker Jeff Graham Facet Design

“Z” Rocker (SUN31.JRG)
By Jeff R. Graham
Copyright 2006
86.7% Light Return
Angles for R.I. = 1.54
15 facets + 4 facets on girdle = 19 2-fold, mirror-image symmetry
96 index
L/W = 2.000 T/W = 1.384 T/L = 0.692 P/W = 0.564
C/W = 0.119 H/W = (P+C)/W+0.02 = 0.703 P/H = 0.802 C/H = 0.169 Vol./W^3 = 0.751

Addition # 11 – Cut this in refractive indexes 1.54 to 2.14 with no changes. This is simple to cut and will work well in about any material and is designed for shiller/color. Also it works well if you split color over the center so that the color rocks.

"Z" Rocker 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.