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

Whoa Squared (SUN33.JRG)
By Jeff R. Graham
Copyright 2006
84.7% Light Return
Angles for R.I. = 1.54
23 facets + 8 facets on girdle = 31
2-fold symmetry
96 index
L/W = 1.000 T/W = 0.878 T/L = 0.878 P/W = 0.467
C/W = 0.139 H/W = (P+C)/W+0.02 = 0.626 P/H = 0.746 C/H = 0.222 Vol./W^3 = 0.313

Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is more difficult to cut than it may look. The crown will take some tweaking to get right. This is designed for small color spots and medium saturation. Note: The crown breaks can be cut short then the steps cut and re-cut the breaks to meet.

 

 

 

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