Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)

Rose Bud (CHECK32.JRG)
By Jeff R. Graham
Copyright 2001
88.9% Light Return
Angles for R.I. = 1.62
50 facets + 15 facets on girdle = 65
1-fold symmetry
96 index
L/W = 1.257 T/W = 0.199 T/L = 0.158
P/W = 0.433 C/W = 0.217
H/W = (P+C)/W+0.02 = 0.671
P/H = 0.646 C/H = 0.324
Vol./W^3 = 0.246

Addition # 6 - This can be cut in any refractive index with no changes. I like this one in pink/red. The checkered top on this can be a little confusing to cut the first time. Note; I usually rough in the table before cutting C12.

 

 

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