| 1 | The gold-carrying minerals include pyrite, galena, sphalerite, chalcopyrite and quartz. | |
| 2 | Lead is rarely found free in nature; its major ore is the sulfide galena. | |
| 3 | The sulfide mineral mainly consists of pyrite, and a small amount of pyrrhotite, galena and sphalerite . | |
| 4 | The main silver carrier mineral is sphalerite . Silver may exist in sphalerite and galena as an ultramicromineral inclusion. | |
| 5 | The element Cd is enriched in sphalerite , and the elements Ge and Ga abound in galena from the Huize lead-zinc deposit. |