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Barion Square Cushion 1
GemCad Ray Traces for RI = 1.63 Random Model Cosine Model ISO Model
Barion Square Cushion 1
GemCad Derived Rendering by Bob Keller bkeller@rockhounds.com July 2000Angles for R.I. = 1.63 81 facets + 16 facets on girdle = 97 4-fold, mirror-image symmetry 96 index L/W = 1.000 T/W = 0.515 T/L = 0.515 P/W = 0.526 C/W = 0.171 H/W = (P+C)/W+0.02 = 0.717 P/H = 0.734 C/H = 0.239 Vol./W^3 = 0.312 Brightness at 0 degrees tilt for RI = 1.63
COS = 81.0 ISO = 89.6
Pavilion 1 41.50 03-09-15-21-27-33-39-45-
51-57-63-69-75-81-87-93Cut to meet at temporary culet g2 90.00 03-21-27-45-51-69-75-93 Meet 1 establish size, girdle outline g3 90.00 01-23-25-47-49-71-73-95 Meet 1,g2 4 65.00 03-21-27-45-51-69-75-93 Meet 1,g2 5 65.76 01-23-25-47-49-71-73-95 Meet g2,g3,4 6 40.00 06-18-30-42-54-66-78-90 Meet 1,4,5 - permanent culet Crown A 50.00 03-21-27-45-51-69-75-93 Meet g2 establish upper girdle line B 46.00 01-23-25-47-49-71-73-95 Meet A,g2,g3 C 36.00 12-36-60-84 Meet A,g2 D 41.12 96-24-48-72 Meet A,B,C - B,g3 E 28.00 96-24-48-72 Meet A,B,C,D F 20.00 03-21-27-45-51-69-75-93 Meet A,B,C,D,E G 20.48 12-36-60-84 Meet A,B,C,D,E,F T 0.00 Table Meet E,F - G,F
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