| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 337 Hewett, D.F. & M. Fleischer (1960), Deposits of the manganese oxides, Econ.Geol.: 55: 1-55 Romslo, T.M. & S.F. Ravitz (1947), Arizona manganese-silver ores, US Bur. Mines Rept. Inv. 4097 Rasor, C.A. (1939), Manganese mineralization at Tombstone, AZ, Econ.Geol.: 34: 790-803. |
Florida Mine group, Tombstone Mining District, Cochise County, Arizona, USA