| 1 | Iron carbonate, FeCO3, as is siderite. always brown. | |
| 2 | IV. carbonate mineral contain iron, include siderite, ankerite, etc. | |
| 3 | The metal minerals are mainly siderite and pyrite of hydrothermal stage. | |
| 4 | Siderite is vastly developed in the Longtan, Changxing formations in southwestern mine area, Zhijin coalfield. | |
| 5 | For processing fine, feebly magnetic minerals, such as hematite, limonite, ilmenite, wolframite, tantalumniobium, red sludge and etc. |