Golden Scale: Faceting Design Diagram
Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Golden Scale".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Golden Scale (MC84.JRG)
By Jeff R. Graham
Copyright 1998
75.8% Light Return
Angles for R.I. = 1.62
33 facets + 5 facets on girdle = 38
1-fold, mirror-image symmetry
96 index
L/W = 1.048 T/W = 0.698 T/L = 0.666
P/W = 0.371 C/W = 0.127
H/W = (P+C)/W+0.02 = 0.518
P/H = 0.715 C/H = 0.246
Vol./W^3 = 0.161
Addition # 7 - This is quite nice and not as hard to cut as it may look. It is important to have the correct L/W=1.048 and the rest will cut in fairly easily. This works well in about any material.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
