sep in all experiments aimed at testing the gold content of rocks or ore you should ask yourself whether the conditions of his test differ in any vital
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iron ore is a chemical sedimentary rock that people have used as an important source of metal.
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an acid test is any qualitative chemical or metallurgical assay which uses acid most commonly, and historically, the use of a strong acid to distinguish gold from
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for gold and silver bullion analysis and assay there are many different methods available,for example silver bullion can be analyzed by cupellation,by chemical
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