| Gilman pyrites typically have associated minerals, particularly flattened siderite rhombohedra and marmatite. |
| Other Aboriginal groups around Australia used fire drills, flints and pyrites to make fire. |
| At these places, it is most frequently connected with a gangue of heavy spar and calcareous spar, with pyrites of iron. |
| In the fossilisation process, the original organic parts of the shark's tooth are replaced by minerals such as iron pyrites and silica. |
| Iron, in the state of ferric oxide is of less importance, but pyrites and all ferrous compounds are particularly objectionable. |
| Nodular lumps of pyrites and crystals of selenite are of frequent occurrence. |
