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Parent-60819206d34e8564d686610c |
Michigan Critical Minerals Information - Critical Mineral: Al, Mg, As, Ba, Be, Bi, Co, Cr, Ga, Ge, La, Mn, Nb, Rb, Sc, Sr, Ti, V, W, Y, Zr; Natural Mineral Occurence: sulfides (looking for copper-silver); General Geological Setting: Lower Precambrian granites and gneisses |