| Elements | Cu | Fe | Bi | Pb | Ni |
| Content/% | 15.22 | 2.18 | 13.58 | 3.62 | 0.05 |
| Elements | Al | Co | Ca | As | Zn |
| Content/% | 1.93 | 0.04 | 0.91 | 0.73 | 0.04 |