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Verified Coordinates: Latitude, Longitude (i.e 38.077,-89.030)
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Some small faults were reported southwest of the shaft, whose offsets were enough to require grading some of the haulage routes. The roof was 20 feet of gray shale that contained small sandy oblong nodules. The coal contained lenses of pyrite and streaks of gypsum. Some pyrite nodules were present and difficult to remove from the coal. Fusain (“mother coal”) was also present in streaks and bands. The impurities were generally highest in the center of the seam. The floor was a dark gray, carbonaceous fire clay that heaved when exposed to air, and heaved badly when it became wet. This clay was also mined for brick production. In the south and southwest areas of the mine, sandstone was encountered which halted mining efforts in those areas.
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