msha to publish rule addressing hazardous chemicals used in mining some miners use a chemical extraction process that involves digging several holes of
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chemical and micro structural characterisation studies on natural uraninite and associated gangue minerals ram, r. charalambous, f.a. mcmaster, s. pownceby, m.i
lindgren defines an ore mineral as quot a mineral which may be used for the a mineral possessing such physical and chemical properties and occurring in a pitchblende and uraninite contain theoretically up to per cent uranium but .of the shinkolobwe mine, belgian congo the eldorado mine, great bear lake,
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mineralogical magazine, april vol. pp.the chemical composition of uraninite in variscan granites of the erzgebirge, germany
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