Sunstone (Feldspar, Bytonite, Laboradorite, 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

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

 

 

 

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