Rosary: Faceting Design Diagram
Successful tips, details and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Rosary".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Rosary (CHECK34.JRG)
By Jeff R. Graham
Copyright 2001
87.1% Light Return
Angles for R.I. = 1.62
49 facets + 16 facets on girdle = 65
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.410 T/L = 0.410
P/W = 0.407 C/W = 0.258
H/W = (P+C)/W+0.02 = 0.685
P/H = 0.594 C/H = 0.377
Vol./W^3 = 0.247
Addition # 6 - I designed this for some very pale Afghan Tourmaline nodules that I came across. This design will help deepen light colored material and will have a lot of sparkle. Cut this in refractive indexes 1.62 to 1.93 (89.6%) with no changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
