Sanborn, Margery; Gems & Minerals, May 1977, p64;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 72 816243240485664 | |
| P1 | 45.00° | 2 610141822263034384246505458626670 | |
| P2 | 43.00° | 72 816243240485664 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 42.00° | 72 8 | |
| C2 | 39.00° | 1664 | |
| C3 | 39.00° | 72 8 | |
| C4 | 36.00° | 2456 | |
| C5 | 36.00° | 1664 | |
| C6 | 33.00° | 3248 | |
| C7 | 33.00° | 2456 | |
| C8 | 30.00° | 40 | |
| C9 | 30.00° | 3248 | |
| C10 | 27.00° | 40 | |
| C11 | 27.00° | 32 | |
| C12 | 24.00° | 24 | |
| C13 | 21.00° | 16 | |
| C14 | 18.00° | 72 8 | |
| C15 | 5.00° | 72 816243240485664 |