Snowflake: Faceting Design Diagram

Successful tips, details and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Snowflake"


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

Snowflake (TLINE13.JRG)
By Jeff R. Graham
Copyright 1993
75.9% Light Return
Angles for R.I. = 1.62
169 facets + 16 facets on girdle = 185
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.440 T/L = 0.440
P/W = 0.441 C/W = 0.172
H/W = (P+C)/W+0.02 = 0.633
P/H = 0.697 C/H = 0.272
Vol./W^3 = 0.218

Addition # 1 - This design makes a nice stone in light material and because of the number of facets I cut it in a large size. It's reflection is higher than it ray traces and takes some work to cut. Cut in refractive indexes 1.62 to 1.93 (89.1%) with no changes.

Random - Cosine - ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

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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