| References: | Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 530, 626; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 186; Lausen, C. (1928), Hydrous sulphates formed under fumerolic conditions at the United Verde mine, American Mineralogist: 13: 203-229; Anderson, C.A. (1927), Voltaite from Jerome, Arizona, American Mineralogist: 12: 287-290; Anderson, C.A. (1927), Voltaite from Jerome, AZ, Am.Min.: 12: 287-290. |