Faceting Design Diagram: Simple Glitter – Tourmaline, Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite

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

Simple Glitter Jeff Graham Facet Design Simple Glitter Jeff Graham Facet Design

Simple Glitter (MC91.GEM)
By Jeff R. Graham
Copyright 2003
81.1% Light Return
Angles for R.I. = 1.62
113 facets + 16 facets on girdle = 129
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.350 T/L = 0.350 P/W = 0.431
C/W = 0.206 H/W = (P+C)/W+0.02 = 0.657 P/H = 0.656 C/H = 0.314 Vol./W^3 = 0.213

Addition # 12 – This is pretty neat. The outside facets frame the center facets which are quite sparkly. The P1,C1 tiers can vary in width, just cut C2,P3 in or out. Note: On the crown changing C1 will affect the table. Cut in refractive indexes 1.62 to 2.14 (84.4) with no changes. Hint: I try to make the table a little larger than the P4 tier so it shows like a star through the table.

Simple Glitter Jeff Graham Facet Design


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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