Sixty One

GemCad Ray Traces for RI = 1.61 | ||
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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 |