Crystal Structure of Protopyroxene
| Id | 9002033 |
| Mineral name | Protopyroxene |
| a (Å) | 9.1167 |
| b (Å) | 8.7857 |
| c (Å) | 5.1837 |
| α (°) | 90 |
| β (°) | 90 |
| γ (°) | 90 |
| V (Å3) | 415.197 |
| Space group | P 21 c n |
Publication: American Mineralogist (1999) 84, 245-256
| Id | 9002033 |
| Mineral name | Protopyroxene |
| a (Å) | 9.1167 |
| b (Å) | 8.7857 |
| c (Å) | 5.1837 |
| α (°) | 90 |
| β (°) | 90 |
| γ (°) | 90 |
| V (Å3) | 415.197 |
| Space group | P 21 c n |