Barbour, Tom R; Lapidary Journal, Oct 1961, p452;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 2836 | |
| G2 | 90.00° | 262 | |
| G3 | 90.00° | 757 | |
| G4 | 90.00° | 1747 | |
| G5 | 90.00° | 2638 | |
| G6 | 90.00° | 2044 | |
| G7 | 90.00° | 658 | |
| G8 | 90.00° | 955 | |
| G9 | 90.00° | 64 | |
| G10 | 90.00° | 1846 | |
| G11 | 90.00° | 2440 | |
| G12 | 90.00° | 2242 | |
| P1 | 47.08° | 2242 | |
| P2 | 45.61° | 2836 | |
| P3 | 40.95° | 1846 | |
| P4 | 40.68° | 1549 | |
| P5 | 38.88° | 1945 | |
| P6 | 38.75° | 757 | |
| P7 | 37.89° | 262 | |
| P8 | 36.73° | 1648 | |
| P9 | 35.34° | 32 | |
| P10 | 33.29° | 32 | |
| P11 | 31.54° | 559 | |
| P12 | 29.17° | 1648 | |
| P13 | 28.17° | 1945 | |
| P14 | 24.40° | 1747 | |
| P15 | 14.22° | 658 | |
| P16 | 8.00° | 64 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 47.08° | 2242 | |
| C2 | 45.61° | 2836 | |
| C3 | 41.66° | 262 | |
| C4 | 40.95° | 1846 | |
| C5 | 39.64° | 1549 | |
| C6 | 38.88° | 1945 | |
| C7 | 38.75° | 757 | |
| C8 | 36.73° | 1648 | |
| C9 | 36.03° | 559 | |
| C10 | 35.34° | 32 | |
| C11 | 33.29° | 32 | |
| C12 | 29.17° | 1648 | |
| C13 | 28.17° | 1945 | |
| C14 | 24.40° | 1747 | |
| C15 | 14.22° | 658 | |
| C16 | 8.00° | 64 |