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

Omit (SUN2.JRG)
By Jeff R. Graham
Copyright 2006
84.8% Light Return
Angles for R.I. = 1.54
29 facets + 8 facets on girdle = 37
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.621 T/L = 0.621 P/W = 0.466
C/W = 0.222 H/W = (P+C)/W+0.02 = 0.708 P/H = 0.658 C/H = 0.313 Vol./W^3 = 0.291

Addition # 11 - This works in refractive indexes 1.54 to 2.14 with no changes. This is designed for watermelon or multi-colored material. Note: The pavilion is a reflector which will help keep colors from mixing.

 

 

 

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