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Chalcocite - Flambeau Mine, 6.0cm x 5.8cm
Hematite - Montreal Mine, Iron Co., Former collections of Frank Knechtel, Don Olson, 2.0cm x 7.5cm
Smithsonite after Calcite - Former collection American Mus. Nat. Hist., 7.0cm x 6.5cm
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Manganocalcite - Montreal Mine, Iron Co., Former collection of Mary and Gardner Miller, 6.2cm x 5.5cm
Rhodochrosite - Montreal Mine, Iron Co., 4.5cm x 2.8cm
Bob Weaver
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