| NN | Card | Specie | Formula | Space Group |
|---|---|---|---|---|
| 1. | 1172 | [1], td-fluorite, DF | Cu7.2S4 | F m3m |
| 2. | 11126 | [2] | Cu9S5 | *R 3(-)m |
| 3. | 11127 | [3], t-defective fluorite, syn, at 300oK, DF | Cu1.85S | F m3m |
| 4. | 11128 | [4], t-defective fluorite, syn, at 393oK, DF | Cu1.85S | F m3m |
| 5. | 11129 | [5], t-defective fluorite, syn, at 500oC, DF | Cu2S | F m3m |