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USA | |
- Upper Mississippi Valley Mining District
| Heyl, A., A. F. Agnew, E. J. Lyons & C.H. Behre Jr. (1959), The geology of Upper Mississippi Valley Zinc-Lead District: U.S. Geological Survey Professional Paper 309, 310 p. |
| Heyl, A., A. F. Agnew, E. J. Lyons & C.H. Behre Jr. (1959), The geology of Upper Mississippi Valley Zinc-Lead District: U.S. Geological Survey Professional Paper 309, 310 p. |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Heyl, A., A. F. Agnew, E. J. Lyons, & C.H. Behre Jr., 1959, The Geology of Upper Mississippi Valley zinc-lead District: USGS Prof. Paper 309, 310pp. |
- Upper Mississippi Valley Mining District
| AmMin 44:995-1009 |
| Palache, Charles, Berman, Harry, Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Ect. John Wiley and Sons, New York. |
| Heyl, A., A. F. Agnew, E. J. Lyons & C.H. Behre Jr. (1959), The geology of Upper Mississippi Valley Zinc-Lead District: U.S. Geological Survey Professional Paper 309: 288. |
| Rocks & Min. Vol. 73 (1998) |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |