Faceting Design Diagram: Zig – Reflector – Tourmaline – Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite

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

Zig – Reflector (MC24.JRG) Tourmaline cut by Tony Carson
By Jeff R. Graham
Copyright 1999
80% Light Return
Angles for R.I. = 1.62
10 facets + 4 facets on girdle = 14
2-fold symmetry
96 index
L/W = 2.000 P/W = 0.466 C/W = 0.184H/W = (P+C)/W+0.02 = 0.670
P/H = 0.696 C/H = 0.274
Vol./W^3 = 0.745

Addition # 4 -This has nice long diamond shaped flash in it. I like this in Amethyst or any nice color Quartz. There are no surprises when cutting, I usually cut this in a larger size, but it works well for small crystals too. This works in Topaz also…

Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

About the author
Jeff R. Graham
The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.
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