| In terms of finance alone, last night was the difference between digging gold or iron pyrites. |
| Rather, the quartz crystals are cleanly truncated at the contacts, or they wrap themselves around the pyrites. |
| The ores are argentiferous galena, accompanied by considerable amounts of blende and pyrites, all oxidized near the surface. |
| 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. |
| In the fossilisation process, the original organic parts of the shark's tooth are replaced by minerals such as iron pyrites and silica. |
