Tri-state Mining District, Kansas - Missouri - Oklahoma
Small cabinet - 8.2 x 6.0 x 3.0 cm
106 grams
Specimen status: Available
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Abundant marcasite and somewhat less abundant chalcopyrite crowd a carpet of dull, opaque dolomite, all on a chert matrix. Scattered, minor incomplete spots but overall condition is quite nice. Like pyrite, marcasite tends to decompose and produce a sulfurous odor. This is an old specimen and appears to be quite stable, with no evidence of decomposition or foul odor.
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