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