| Other minerals mentioned from the mine by Dunham include galena, sphalerite, pyrite, chalcedony, and minor marcasite and pyrrhotite. |
| Iron and copper sulfides of this region are predominately pyrite, pyrrhotite, chalcopyrite, arsenopyrite, bornite, and marcasite. |
| Whereas monoclinic pyrrhotite is ferrimagnetic, the hexagonal variety is antiferromagnetic. |
| This rock is a dark gray schistose rock containing radiating aggregates of cummingtonite and occasionally pyrrhotite. |
| Many conclude that because pyrite is cubic, pyrrhotite must be hexagonal, as it often appears. |
| Microcrystals of pyrrhotite, goethite, pyrite, galena, and calcite are found on the dumps. |
