Lead Minerals and Deposits
Lead in the Earth's crust is about 16 g/t (0.0016%) .Lead sulphide (PbS) called Galena is the most important lead mineral. Lead minerals are mostly associated with other minerals, mainly zinc ores (about 70%).Lead deposits can be classified as follows:
Deposits
- Hydrothermal vein: There are two important deposits from this kind: Broken Hill in Australia and Anvil Mine in Canada and some anodes mine in the world.
- Volcanogenic sedimentary: This kind of deposits could be rich ore such as : Sullivan Mine in Canada ;Ramelsberg (Harz) in Germany; Mount Isa and Hellyer in Australia
- Hydrothermal or marine sedimentary: This kind of deposits is typically in calcareous or dolomitic formation such as North American and European, Pine Point in Canada and USA.
Lead Minerals
Table 1 shows the important lead minerals:
| Mineral | Formula | %Pb | Crystal system |
| Galena | PbS | 86.6 | cubes |
| Anglesite | PbSO4 | 68.3 | Orthorhombic |
| Cerussite | PbCO3 | 77.5 | Orthorhombic |
| Vanadinite | Pb5(VO4)3Cl | - | Hexagonal |
| Wulfenite | PbMoO4 | 56 | Tetragonal |

