Infusion: Faceting Design Diagram

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

Infusion (SUN13.JRG)
By Jeff R. Graham
Copyright 2006
88.9% Light Return
Angles for R.I. = 1.54
37 facets + 8 facets on girdle = 45
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.205 T/L = 0.205 P/W = 0.466
C/W = 0.162 H/W = (P+C)/W+0.02 = 0.648 P/H = 0.719 C/H = 0.250 Vol./W^3 = 0.261

PAVILION

CROWN

Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. Note: The corners float and can be adjusted. Cut them as close to the diagram as you can for the square checkers. This is good for thinner and moderate colored material

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

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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