Walls, Alton R; Gems & Minerals, Mar 1955, p28;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 618304254667890 | |
| P1 | 47.00° | 618304254667890 | |
| P2 | 41.50° | 618304254667890 | |
| P3 | 41.00° | 3 91521273339455157636975818793 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 45.00° | 618304254667890 | |
| C2 | 35.50° | 3 91521273339455157636975818793 | |
| C3 | 35.00° | 618304254667890 | |
| C4 | 30.00° | 618304254667890 | |
| T | 0.00° | 48 |