| Mineral | Symmetry Class | Space Group | a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|---|---|---|
| Modderite | orthorhombic | P bnm | 5.8690 | 5.2920 | 3.4580 | 90.00 | 90.00 | 90.00 |
| Ruthenarsenite | orthorhombic | P nma | 5.6280 | 3.2390 | 6.1840 | 90.00 | 90.00 | 90.00 |
| Westerveldite | orthorhombic | P bnm | 6.0280 | 5.4390 | 3.3730 | 90.00 | 90.00 | 90.00 |
| cherepanovite | orthorhombic | P nma | 5.7000 | 3.5900 | 6.0000 | 90.00 | 90.00 | 90.00 |