| Mineral | Symmetry Class | Space Group | a | b | c | alpha | beta | gamma |
|---|---|---|---|---|---|---|---|---|
| Bracewellite | orthorhombic | P bnm | 4.4920 | 9.8600 | 2.9740 | 90.00 | 90.00 | 90.00 |
| Diaspore | orthorhombic | P bnm | 4.4007 | 9.4253 | 2.8452 | 90.00 | 90.00 | 90.00 |
| Goethite | orthorhombic | P nma | 9.9500 | 3.0100 | 4.6200 | 90.00 | 90.00 | 90.00 |
| Groutite | orthorhombic | P bnm | 4.5600 | 10.7000 | 2.8700 | 90.00 | 90.00 | 90.00 |
| Guyanaite | orthorhombic | P 2(1)nm | 4.8730 | 4.3320 | 2.9630 | 90.00 | 90.00 | 90.00 |
| Montroseite | orthorhombic | P bnm | 4.8200 | 9.4800 | 2.9300 | 90.00 | 90.00 | 90.00 |
| Tsumgallite | orthorhombic | P bnm | 4.5120 | 9.7720 | 2.9670 | 90.00 | 90.00 | 90.00 |