Sixty One

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Sixty One



GemCad Ray Traces for RI = 1.61
Random Model Cosine Model ISO Model
Sixty One Designed by Charles W. Covill covill@email.msn.com
Angles for R.I. = 1.61 53 facets + 8 facets on girdle = 61
4-fold, mirror-image symmetry 96 index
L/W = 1.000 T/W = 0.580 T/L = 0.580 P/W = 0.416 C/W = 0.117 H/W = (P+C)/W+0.02 = 0.552 P/H = 0.753 C/H = 0.211
Vol./W^3 = 0.142 Brightness at 0 degrees tilt for RI = 1.61 COS = 50.9 ISO = 64.7

Pavilion
g 90.00 09-15-33-39-57-63-81-87
1 47.00 09-15-33-39-57-63-81-87
2 42.00 06-18-30-42-54-66-78-90
3 44.50 11-13-35-37-59-61-83-85
Crown
a 40.00 09-15-33-39-57-63-81-87
b 29.00 96-24-48-72
c 33.00 11-13-35-37-59-61-83-85
d 23.00 09-15-33-39-57-63-81-87
t 0.00 Table