Hematite from Dragoon District (Golden Rule District), Cochise County, Arizona, USA
USA | |
| (1951, July) Arizona Zinc and Lead Deposits - Part II. University of Arizona Bulletin 158. Arizona Bureau of Mines Wilson, E.D., et al (1934), AZ Bur. Mines Bull. 137: 121 |
Luetcke, Rolf (n.d.) Personal communication. |
Golden Rule Mine, Dragoon District, Cochise County, Arizona, USA