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How Is Pyrite Mined Or Processed Coal Russian

How Is Pyrite Mined Or Processed Coal Russian

201871ensp0183enspNorthumberland coal samples taken from the Shotton site contain three types of pyrite 1 rare framboidal disseminated pyrite typically lt5 m in diameter Fig 3a 2 cubic disseminated pyrite up to 2 mm in length Fig 3b and 3 pyrite concentrated in cleats up to 2 mm wide ie fractures veins and veinlets that resulted from

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