Phosphohedyphane from Cochise County, Arizona, USA
USA | |
| "The Accidental Pocket" talk presented by Robert E. Walstrom at 2012 NCMA meeting. |
| Luetcke, Rolf (n.d.) Personal communication. |
| Rob Bowell, lab tested |
Luetcke, Rolf (n.d.) Personal communication. | |
| Luetcke, Rolf (n.d.) Personal communication. |
| Robert Jenkins Raman Spectroscopy |
San Diego Mine, Tombstone Extension Mines, Tombstone Mining District, Cochise County, Arizona, USA