Spiral Sun: Faceting Design Diagram

Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Spiral Sun (MIR66.JRG)
By Jeff R. Graham
Copyright 2005
91.9% Light Return
Angles for R.I. = 1.54
33 facets + 8 facets on girdle = 41
8-fold symmetry
96 index
L/W = 1.000 T/W = 0.367 T/L = 0.367 P/W = 0.435 C/W = 0.240 H/W = (P+C)/W+0.02 = 0.695 P/H = 0.625 C/H = 0.346 Vol./W^3 = 0.241

PAVILION

CROWN

Addition # 10 - This is another good earring design for lightly saturated materials. This is easy and fast to cut. I like it in Rose de France. Cut in refractive indexes 1.54 to 2.14 with not changes.

Detailed faceting instructions by Jeff Graham available at The Rock Peddler