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Mineral identification guide mining matters,hardness: 3., streak: green-black lustre: metallic magnetic: no conductive: yes cleavage: none relative density: 4.2 distinguishing characteristic: conductive origin of your samples: timmins, ontario other occurrences: chile, peru, mexico, europe, south africa and usa uses: chalcopyrite is the primary ore of copper. copper is used in
hardness: 3., streak: green-black lustre: metallic magnetic: no conductive: yes cleavage: none relative density: 4.2 distinguishing characteristic: conductive origin of your samples: timmins, ontario other occurrences: chile, peru, mexico, europe, south africa and usa uses: chalcopyrite is the primary ore of copper. copper is used in dec 22, 2014 last, in the ore hardness measurement world is the australian religion that takes the form of either the JK drop weight testing and population balance models by JK simmet, or the smc test and its power-based models by morrell. the power-based smc test is comparable to the other power-based methods but, arguably, has the poorest calibration to heterogeneous mar 28, 2015 crushing and grinding is a multi staged process and may use dry or wet ore feed. depending on the ore hardness two, three, and sometimes four stages of crushing, are used to reduce the run of mine ore to the required feed size. primary and secondary crushing is normally by gyratory or cone crushers.
