Baryte from selected localities.
USA | |
| Wilson, E.D. & G.M. Butler (1930), Manganese ore deposits in AZ, AZ Bur. Mines Bull. 127: 99-100; Jones, E.L., Jr. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 182. |
| Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 128. |
Planet Mine, Planet Mine group, Planet, Santa Maria Mining District, Buckskin Mountains, La Paz County, Arizona, USA