| Mineral | Symmetry Class | Space Group | a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|---|---|---|
| Jokokuite | triclinic | P 1(-) | 6.1300 | 10.7700 | 6.3700 | 77.83 | 109.97 | 98.77 |
| Pentahydrite | triclinic | P 1(-) | 6.2490 | 10.5846 | 6.0384 | 82.46 | 109.43 | 104.91 |
| Siderotil | triclinic | P 1(-) | 6.2600 | 10.5900 | 6.0500 | 77.01 | 110.01 | 92.02 |
| chalcanthite | triclinic | P 1(-) | 6.1160 | 10.7160 | 5.9610 | 82.36 | 107.31 | 102.61 |