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

Hedonist (DOME6.JRG)
By Jeff R. Graham
Copyright 2007
70.6% Light Return
Angles for R.I. = 1.62
49 facets + 6 facets on girdle = 55
6-fold, mirror-image symmetry
96 index
L/W = 1.155 T/W = 0.368 T/L = 0.319 P/W = 0.419
C/W = 0.305 H/W = (P+C)/W+0.02 = 0.744 P/H = 0.563 C/H = 0.410 Vol./W^3 = 0.285

Addition # 13 - This is designed for light colored material like pale pink. It is easy to cut and has a nice flash pattern. Cut in refractive indexes 1.62 to 2.14 with no changes.

 

 

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