| [var. Electrum] Alba Nury Gallego Hernández and Masahide Akasaka (2010): Ag-rich Tetrahedrite in the El Zancudo Deposit, Colombia: Occurrence, Chemical Compositions and Genetic Temperatures. Resource Geology 60, 218-233. Akasaka, Masahide (2007): Silver-bearing and associated minerals in El Zancudo deposit, Antioquia, Colombia. Resource Geology 57, 386-399. Hernández, Alba Nury Gallego |