Turbulent Times: Faceting Design Diagram

Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)

Turbulent Times (SUN22.JRG)
By Jeff R. Graham
Copyright 2006
76.1% Light Return
Angles for R.I. = 1.54
51 facets + 10 facets on girdle = 61
5-fold, mirror-image symmetry
80 index
L/W = 1.000 T/W = 0.541 T/L = 0.541 P/W = 0.517
C/W = 0.215 H/W = (P+C)/W+0.02 = 0.752 P/H = 0.688 C/H = 0.286 Vol./W^3 = 0.285

PAVILION

CROWN

Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is designed for lightly saturated rough and works in any color. I like it in Beryl and light colored watermelons. This is not complicated and cuts easily. Note: The girdle can be cut in first and the P1 cut to meet so that center point is not needed and it saves rough.

Detailed faceting instructions by Jeff Graham available at The Rock Peddler