"Iron Country" Minerals in the
A. E. Seaman Mineral Museum

Michigan's Upper Penninsula contains several important iron mining districts that have produced excellent mineral specimens, including hematite, barite, goethite, gold, seamanite, and more.

• Alberta area, Baraga County: graphite, pyrolusite.
• Bengal iron mine and Chicagon mine, Iron County: seamanite, shigaite, rhodochrosite.
• Champion mine, Marquette County: molybdenite, tourmaline.
• Gold mines, Marquette County: gold, serpentine.
• Lake Ellen, Iron County: diamond, garnet, kimberlite.
• Loretto mine, Marquette County: calcite, chalcopyrite, pyrite.
• Lucy mine, Marquette County: barite, manganite, goethite, limonite.
• Michigamme mine, Marquette County: garnet pseudomorphs, staurolite, grunerite, "martite".
• Rhodochrosite: rhodochrosite, goethite.
• Other "Iron Country" minerals: hematite, psilomelane, "jaspillite", graphite, goethite, limonite.

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