Barbour, Tom; Lapidary Journal, Jun 1969, p202;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 120 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96102108114 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 84.00° | 120 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96102108114 | |
| C2 | 80.00° | 3 9 15 21 27 33 39 45 51 57 63 69 75 81 87 93 99105111117 | |
| C3 | 69.50° | 3 9 15 21 27 33 39 45 51 57 63 69 75 81 87 93 99105111117 | |
| C4 | 67.00° | 120 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96102108114 | |
| C5 | 59.50° | 120 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96102108114 | |
| C6 | 57.00° | 3 9 15 21 27 33 39 45 51 57 63 69 75 81 87 93 99105111117 | |
| C7 | 51.50° | 3 9 15 21 27 33 39 45 51 57 63 69 75 81 87 93 99105111117 | |
| C8 | 49.00° | 120 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96102108114 | |
| C9 | 43.00° | 120 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96102108114 | |
| T | 0.00° | 120 |