Vampire: 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 "Vampire"
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Vampire (CHECK40.JRG)
By Jeff R. Graham
Copyright 2001
88.6% Light Return
Angles for R.I. = 1.62
45 facets + 16 facets on girdle = 61
2-fold, mirror-image symmetry
96 index
L/W = 1.247 T/W = 0.248 T/L = 0.199
P/W = 0.447 C/W = 0.178
H/W = (P+C)/W+0.02 = 0.645
P/H = 0.693 C/H = 0.276
Vol./W^3 = 0.317
Addition # 6 - This works in refractive indexes 1.62 to 1.93 with no changes. It is especially good in Garnet (89.6%), and is good for saturated materials.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
