Faceting Design Diagram: Vanguard – Feldspar – Bytonite, Labradorite, Spectrolite, Orthoclase

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

Vanguard Jeff Graham Face Design


Vanguard (SUN38.JRG)
By Jeff R. Graham
Copyright 2006
83.2% Light Return
Angles for R.I. = 1.54
16 facets + 4 facets on girdle = 20
4-fold symmetry
96 index
L/W = 1.000 P/W = 0.450 C/W = 0.165
H/W = (P+C)/W+0.02 = 0.635 P/H = 0.709 C/H = 0.259 Vol./W^3 = 0.258

Addition # 11 – Cut in refractive indexes 1.54 to 2.14 with no changes. This is easy, fast to cut, and designed for earrings and thin rough. It will work in color or light shiller. Large sized stones work best and I would suggest 8mm and up.


Detailed faceting instructions by Jeff Graham available at The Rock Peddler

About the author
Jeff R. Graham
The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.
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