|
Hematite  | | | | Reference: | [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.] |
| |
| |
Magnetite  | | | | Reference: | [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.] |
| |
| |
Quartz var: Chert  | | | | Reference: | [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.] |
| |
| |