Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)

Warrior (MC44.JRG)
By Jeff R. Graham
Copyright 2001
95.1% Light Return
Angles for R.I. = 1.62
40 facets + 12 facets on girdle = 52
3-fold, mirror-image symmetry
96 index
L/W = 1.066 T/W = 0.303 T/L = 0.284
P/W = 0.426 C/W = 0.166
H/W = (P+C)/W+0.02 = 0.612
P/H = 0.696 C/H = 0.271
Vol./W^3 = 0.211

Addition # 7 - This is not meant to be a large stone. I usually do not cut it larger than 2 to 3 carats. This design will help lighten up material that is just a little on the dark side. The large triangular shape on the crown reads well from a distance and is interesting. Cut in refractive indexes 1.62 to 2.20 with no changes.

 

 

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