Faceting Design Diagram: Solo Sunrise – Feldspar – Bytonite, Labradorite, Spectrolite, Orthoclase


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

Solo Sunrise Jeff Graham Facet Design

Solo Sunrise Jeff Graham Facet Design

Solo Sunrise (SUN4.JRG)
By Jeff R. Graham
Copyright 2006
82.5% Light Return
Angles for R.I. = 1.54
42 facets + 12 facets on girdle = 54
1-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.443 T/L = 0.443 P/W = 0.442
C/W = 0.167 H/W = (P+C)/W+0.02 = 0.628 P/H = 0.703 C/H = 0.265 Vol./W^3 = 0.192

 

Addition # 11 – Cut this in refractive indexes 1.54 to 2.14 with no changes. This is actually designed for single color non-shiller material or light watermelons. Note: The table is not large so it works best in pale colors.

Solo Sunrise 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.