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


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

Bobber Jeff Graham Facet Design1

Bobber Jeff Graham Facet Design2

Bobber (BEAD15.JRG)
By Jeff R. Graham
Copyright 2007
Angles for R.I. = 1.54
224 facets
16-fold, mirror-image symmetry
96 index
L/W = 1.000
H/W = 1.456
Vol./W^3 = 0.547

 

Addition # 14 – NOTE: A temporary girdle can be cut at 90 degrees using the P1 settings. This helps with alignment, then the girdle can be left or cut off. This works well in any large material. I like light colored Quartz. Tables can be 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.