PC 28.022
Tri Fan
- L/W
- 109%
- Design RI
- 1.54
- H/W
- 86%
- Gear
- 120
- V/W³
- 0.317
- Symmetry
- 3 (mirrored)
- Facets
- 61
- Tiers
- 11
- Crown
- 6
- Pavilion
- 55
Giacomini, Afton; Gems & Minerals, Sep 1968, p21;
Wireframe
Pavilion
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 12 28 52 68 92108 | |
| P1 | 63.00° | 12 28 52 68 92108 | |
| P2 | 58.00° | 12 28 52 68 92108 | |
| P3 | 53.00° | 12 28 52 68 92108 | |
| P4 | 48.00° | 12 28 52 68 92108 | |
| P5 | 43.00° | 12 28 52 68 92108 |
Crown
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 58.00° | 12 28 52 68 92108 | |
| C2 | 50.00° | 11 29 51 69 91109 | |
| C3 | 40.00° | 8 32 48 72 88112 | |
| C4 | 36.00° | 4 36 44 76 84116 | |
| T | 0.00° | 120 |