Siderite from selected localities.
USA | |
| Dana 6:82. |
USGS Prof Paper 610 "Principal Gold Producing Districts of the United States" | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. | |
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Beard Mine, Guilford County Copper Mining District, Guilford County, North Carolina, USA