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Verified Coordinates: Latitude, Longitude (i.e 38.077,-89.030)
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A small area of the mine had a black shale roof with calcareous coal balls. The remainder of the roof contained many irregularly-distributed pyrite concretions. The coal seam contained occasional horsebacks and rolls up to 25 feet wide. Infrequent pyrite concretions occurred in the coal seam.
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