Whipple, M W; Lapidary Journal, Apr 1958, p96;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 214183034465062 | |
| P1 | 55.00° | 214183034465062 | |
| P2 | 41.00° | 64 8162432404856 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 45.46° | 214183034465062 | |
| C2 | 34.00° | 64163248 | |
| C3 | 24.96° | 8244056 | |
| C4 | 19.00° | 412202836445260 | |
| T | 0.00° | 16 |