Faceting Design Diagram: Purdy Flat – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Purdy Flat Jeff Graham Facet Design1 Purdy Flat Jeff Graham Facet Design2

Purdy Flat (BEAD34.GEM)
By Jeff R. Graham
Copyright 2007
Angles for R.I. = 1.54
256 facets
16-fold, mirror-image symmetry
96 index
L/W = 1.000
H/W = 0.890
Vol./W^3 = 0.407

 

Addition # 14 – NOTE: A temporary girdle can be cut using the P1 settings. This works best in lightly saturated materials and is a fair amount of work but it is not complicated to cut.

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.