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| | Colombo, Fernando, Lira, Raúl and Pannunzio Miner, Elisa V. Mineralogical Characterization Of Topaz From Miarolitic Pegmatites And W-Bearing Greisen In The A-Type El Portezuelo Granite, Papachacra (Catamarca Province). Rev. Asoc. Geol. Argent., Apr 2009, vol.64, no.2, p.194-200. ISSN 0004-4822
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