Sphaler8

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Sphaler8



GemCad Ray Traces for RI = 2.37, Zero Tilt
Random Model Cosine Model ISO Model
GemCad Ray Traces for RI = 2.37, 20° X-Y Tilt
Random Model Cosine Model ISO Model
Sphaler8 Designed by Jerry L. Capps 8-22-00 capdzinz@network2010.net
Order of brightness: CZ, Sphalerite, Corundum (with emphasis on tilt brightness)
Angles for R.I. = 2.37 57 facets + 16 facets on girdle = 73
4-fold, mirror-image symmetry 96 index
L/W = 1.000 T/W = 0.501 T/L = 0.501 P/W = 0.422 C/W = 0.159 H/W = (P+C)/W+0.02 = 0.602 P/H = 0.702 C/H = 0.264
Vol./W^3 = 0.216 Brightness at 0 degrees tilt for RI = 2.37 COS = 54.4 ISO = 74.8
Brightness at 20 degrees X-Y tilt for RI = 2.37 COS = 52.1 ISO = 79.4

Pavilion
P1 40.00 04-20-28-44-52-68-76-92 TCP
P2 40.75 02-22-26-46-50-70-74-94
P3 90.00 02-22-26-46-50-70-74-94 CAM
P4 90.00 04-20-28-44-52-68-76-92 CAM
P5 40.00 03-21-27-45-51-69-75-93 GMP; PCP
Crown
C1 36.00 02-22-26-46-50-70-74-94 Level girdle
C2 35.45 04-20-28-44-52-68-76-92 Level girdle
C3 34.50 03-21-27-45-51-69-75-93 GMP
C4 20.00 03-21-27-45-51-69-75-93 MP 3-1-1-3
T 0.00 Table 50.1%