Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Thistle (MIR5.JRG) 
By Jeff R. Graham
Copyright 2004
90.4% Light Return
Angles for R.I. = 1.62
32 facets + 8 facets on girdle = 40
4-fold, mirror-image symmetry
96 index
L/W = 1.000 P/W = 0.466 C/W = 0.209
H/W = (P+C)/W+0.02 = 0.695
P/H = 0.671 C/H = 0.300
Vol./W^3 = 0.251
Addition # 9 – Note: The P3 cuts just short of center, by varying this tier you will notice that the scissor reflections on the crown will change. This is easy, very fast to cut and works well in any material. I especially like it in Garnets. Cut in refractive indexes 1.62 to 1.93 with no changes.
Random – Cosine – ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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