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, cemented by pyrite, 778 carbonates and albite. E-Oriente deposit. Carbonate (Cb) -pyrite (Py) -emerald-bearing veins 779 crosscutting albitite (Ab) showing some remnants of black shale (Bs). The greyish tracks 780 parallels to the carbonate veins are residues of, Polygenic breccia formed by clasts of albitite (Ab) and black shales (Bs)

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