Sunstone (Feldspar, Bytonite, Labradorite, 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
PAVILION
CROWN
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.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
IGS Become Member
