|minerals_present=Gypsum,Illite,Kaolinite,Pyrite,Quartz,Tourmaline,Zircon
2 KB (256 words) - 07:41, April 23, 2021
|minerals_present=Gypsum,Illite,Kaolinite,Pyrite,Quartz,Tourmaline,Zircon
2 KB (321 words) - 07:41, April 23, 2021
...and was noted, and lenses of pyrite were seen near the center of the seam. Gypsum covered vertical fracture facings. The blue band was about 2 inches thick a
3 KB (336 words) - 14:19, April 7, 2022
...Coal also had lenses, balls and facings of pyrite, as well as calcite and gypsum fracture fillings.
2 KB (329 words) - 11:40, July 12, 2023
...account of the steep grades. The coal contained pyrite lenses. Calcite and gypsum were present along cleats.
3 KB (339 words) - 16:08, April 11, 2022
...ined pyrite bands in lenses and stringers above the blue band. Calcite and gypsum fracture fillings were throughout the bed vertically and laterally.
3 KB (354 words) - 11:59, October 19, 2023
...een, but clay dikes were common, some displacing the coal up to 18 inches. Gypsum was common in the mine, generally seen as a 1/4 to ½ inch lens that was 6
3 KB (349 words) - 12:51, August 30, 2022
...t required timbering. There were also some veins of pyrite and calcium and gypsum throughout the mine. In some locations the roof was limestone, and the coal
3 KB (389 words) - 16:55, November 9, 2022
...ches maximum), sheets and balls, joint fillings and facings of calcite and gypsum up to 1/16th inch thick (apparently an important ash constituent of the bed
3 KB (391 words) - 11:17, September 28, 2022
...part of the seam contained many shaly partings. Some pyrite and calcite or gypsum was present in vertical streaks. Some small local faults occurred in the co
3 KB (408 words) - 12:33, October 12, 2022
...etions. The coal contained pyrite in stringers and lenses, and calcite and gypsum in vein fillings. The blue band was 0.5 to 2 inches thick and 6 to 10 inche
3 KB (410 words) - 15:39, January 11, 2023
...l 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. Fu
3 KB (471 words) - 17:41, May 25, 2022
.... The upper 2-3 inches of the coal contained pyrite bands and a persistent gypsum band.
3 KB (442 words) - 11:16, February 6, 2023
...gray shale. The coal contained pyrite in lenses and stringers, calcite and gypsum fracture fillings, and some thin charcoal lenses throughout the seam.
4 KB (487 words) - 12:08, August 1, 2022
...t parts of the mine. Calcareous clay veins up to 4 inches wide were noted. Gypsum was present throughout the seam. Pyrite was present as lenses or in stony o
3 KB (486 words) - 15:05, January 11, 2023
...the roof were an important factor to mining. A small amount of sulfur and gypsum was present in cracks throughout most of the mine. The floor was clay up to
3 KB (475 words) - 14:48, March 30, 2023
...to separate from the coal. The seam also contained bone coal layers and a gypsum band up to 1 inch thick that was persistent throughout the mine.
4 KB (525 words) - 14:14, July 7, 2023
...harcoal bands, as well as pyrite bands and lenses, and abundant calcite or gypsum fracture fillings that were present throughout the coal vertically and late
4 KB (541 words) - 16:16, October 5, 2023
...te”. The coal contained pyrite lenses in the upper portion, and calcite or gypsum fracture fillings throughout the seam. The thicker coal was in the southern
4 KB (562 words) - 16:14, April 11, 2022
...tive. The coal contained pyrite lenses (up to 1 inch wide) and calcite and gypsum stringers above the blue band.
4 KB (503 words) - 14:43, October 12, 2023
