Swirl Dutch: Faceting Design Diagram

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


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

Swirl Ducth Jeff Graham Facet Design 1Swirl Ducth Jeff Graham Facet Design 2

Swirl Dutch (DOME17.JRG)
By Jeff R. Graham
Copyright 2007
84.8% Light Return
Angles for R.I. = 1.62
129 facets + 16 facets on girdle = 145
16-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.322 T/L = 0.322 P/W = 0.405 C/W = 0.336
H/W = (P+C)/W+0.02 = 0.761 P/H = 0.532 C/H = 0.441
Vol./W^3 = 0.259



Addition # 13 - Cut in refractive indexes 1.62 to 1.76 with no changes. This is for lightly saturated materials and is fun to cut. It a unique look. It is not hard to cut, other than it has a lot of facets.

Swirl Ducth Jeff Graham Facet Design 3

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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