Marcasite

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Marcasite FeS2 with Calcite Wisconsin

Marcasite FeS2 on Calcite, White Pine Mine, White Pine, Ontonagon Co., Michigan

Marcasite FeS2 with Calcite Brushy Creek Mine, Vibrunum Trend, Reynolds Co., Missouri

Marcasite FeS2 on Dolomite, George W. MacLeod Mine, Wawa, Ontario, Canada

Marcasite FeS2 with Sphalerite, Brushy Creek Mine, Vibrunum Trend, Reynolds Co., Missouri

Marcasite FeS2 G.P. Materials South Quarry, Potosi, Washington Co., Missouri

Marcasite FeS2 with Dolomite, Brushy Creek Mine, Vibrunum Trend, Reynolds Co., Missouri

Marcasite FeS2 on Calcitr, Linwood Mine, Scott Co., Iowa