Eagle Picher - Old Calumet and Hecla - Bear Hole or Shullsburg Mine.

James Mine, Shullsburg, WI

James Mine, near Shullsburg, Lafayette County, Wisconsin circa 1920. Wisconsin State Historical Society photograph.

LOCATION: NE SW sec. 22 T.1N. R.2E., Lafayette County, Wisconsin

ACCESSIBILITY: Abandoned, partial reclaimed mine on private land, collecting restricted.

GEOLOGY:Replacement deposit in Paleozoic carbonate rocks. Part of the Upper Mississippi Valley Zinc-Lead district.

MINERALOGY NOTES:

Calcite - large complex xls. Often scalenohedra over 10 cm. long, with scepter overgrowths of rhombohedra. White to pale yellow color.
Dolomite - Drusy crystals, rock forming mineral
Galena - cleavable massive, and cubic crystals
"Limonite" - massive iron hydroxide crusts
Marcasite - massive, crusts of tabular twinned xls.
Millerite - rare, fibrous
Pyrite - massive, cubic crystals
Sphalerite - masses, xls. and colloform banded masses

BIBLIOGRAPHIC REFERENCES: Heyl et. al., 1959; WSC field notes.

Miners, Optimal Mine, WI

Crew of the Optimal Mine, near Linden, WI circa 1900. This was a zinc-lead working in the same district as the Shullsburg deposit. Wisconsin State Historical Society photograph.

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