Manganese Oxides from
USA | |
| [var. Manganese Dendrites] Luetcke, Rolf (n.d.) Personal communication. |
| Martin, Rod (2023) Personal Communication. |
| MRDS database Dep. ID #10026753. |
| Luetcke, Rolf (n.d.) Personal communication. |
| Luetcke, Rolf (n.d.) Personal communication. |
Vekol Mine, Sif Vaya area, Vekol Mining District, Vekol Mountains, Pinal County, Arizona, USA