Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Glitter Drop Heart (MC103.JRG)
By Jeff R. Graham
Copyright 2006
80.9% Light Return
Angles for R.I. = 1.62
112 facets + 13 facets on girdle = 125
1-fold, mirror-image symmetry
96 index
L/W = 1.078 T/W = 0.488 T/L = 0.453 P/W = 0.447
C/W = 0.207 H/W = (P+C)/W+0.02 = 0.674 P/H = 0.663 C/H = 0.307 Vol./W^3 = 0.244
PAVILION
CROWN
Addition # 12 – Cut in refractive indexes 1.62 to 2.14 with no changes. This is a variation of Glitter Drop and basically cuts the same way.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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