| NN | Card | Specie | Formula | Space Group |
|---|---|---|---|---|
| 1. | 2540 | [1], Mn, DF | K2Mn[SO4]2 · 4H2O | C 2/m |
| 2. | 2541 | [2] | K2Mg[SO4]2 · 4H2O | C 2/m |
| 3. | 2543 | [3], Mn | K2Mn[SO4]2 · 4H2O | C 2/m |
| 4. | 2544 | [4], Mn-analogue, at 293oK, DF | K2Mn[SO4]2 · 4H2O | C 2/m |
| 5. | 5449 | [5], at 100oK | K2Mg[SO4]2 · 4H2O | P 2(1)/a |
| 6. | 5450 | [6], Mn-analogue, at 110oK | K2Mn[SO4]2 · 4H2O | P 2(1)/a |
| 7. | 5451 | [7], at 170oK | K2Mg[SO4]2 · 4H2O | *I 2/a |
| 8. | 5452 | [8], Mn-analogue, at 185oK | K2Mn[SO4]2 · 4H2O | *I 2/a |