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Más Éxito en Callanquitas: 11.1 Metros a 3.5 gramos por tonelada de oro
https://ppxmining.com/wp-content/uploads/2014/11/2012-0904-further-success-at-callanquitas.pdf
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Further Success at Callanquitas: 11.1 Metres at 3.5 Grams per Tonne Gold
https://ppxmining.com/wp-content/uploads/2014/11/2012-0904-further-success-at-callanquitas.pdf