Crystal Structure of Protopyroxene
| Id | 9002037 |
| Mineral name | Protopyroxene |
| a (Å) | 8.9921 |
| b (Å) | 8.6310 |
| c (Å) | 5.0659 |
| α (°) | 90 |
| β (°) | 90 |
| γ (°) | 90 |
| V (Å3) | 393.169 |
| Space group | P 21 c n |
Publication: American Mineralogist (1999) 84, 245-256
| Id | 9002037 |
| Mineral name | Protopyroxene |
| a (Å) | 8.9921 |
| b (Å) | 8.6310 |
| c (Å) | 5.0659 |
| α (°) | 90 |
| β (°) | 90 |
| γ (°) | 90 |
| V (Å3) | 393.169 |
| Space group | P 21 c n |