Braunite from selected localities.
USA | |
| Wilson, E.D. & G.M. Butler (1930), Manganese ore deposits in AZ, AZ Bur. Mines Bull. 127: 91-94; Jones, E.L., Jr. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 176. |
| MRDS database Dep. ID file #10048336, MRDS ID #M899920. |
Wilson, E.D. & G.M. Butler (1930), AZ Bur. of Mines Bull. 127, Manganese ore deposits in AZ: 93; Jones, E.L., Jr. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 176. |