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
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