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Quartz from Douglas Co., Wisconsin, USA

USA
 
  • Wisconsin
    • Douglas Co.
Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p. Dutton, C. E. (1972) Sampling of Copper-bearing Keweenawan Rocks of Northwestern Wisconsin: U.S. Geological Survey Open File Report 9.1267, 13p.
      • Amnicon Falls
Cordua, W.S. (1991) Minerals of the Buckley Quarry, Douglas County, Wisconsin: Mineral News : 7(6): 2-3.
Holliday, R. (1955) Investigation of the Chippewa copper-nickel prospect near Rockmont, Douglas County, Wisconsin: U.S. Bureau of Mines Report of Investigations 5114. 11 p.
Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p. Dutton, C. E. (1972) Sampling of Copper-bearing Keweenawan Rocks of Northwestern Wisconsin: U.S. Geological Survey Open File Report 9.1267, 13p.
Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p.
Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p. Dutton, C. E. (1972) Sampling of Copper-bearing Keweenawan Rocks of Northwestern Wisconsin: U.S. Geological Survey Open File Report 9.1267, 13p.
Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399.
Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399.
Grant, U. S. (1901), Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin, 2nd Ed.: Wisconsin Geological and Natural History Survey Bull. VI Economic Series #3, 83 p. Dutton, C. E. (1972) Sampling of Copper-bearing Keweenawan Rocks of Northwestern Wisconsin: U.S. Geological Survey Open File Report 9.1267, 13p.
      • South Range
[Chalcedony var: Agate] Cordua, W.S. (1990), Amygdule Minerals of the South Range Quarry, Douglas County, Wisconsin: Rocks and Minerals: 65: 412-415. 

[Chalcedony] Cordua, W.S., 1998, "Minerals of Wisconsin", Rocks and Minerals vol. 73 #6, p. 378 - 399.
 
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