Black Rock Group
OccurrenceManganeseUSGS MRDS
Location
| State | Arizona |
| County | Graham |
| Coordinates | 33.08287, -110.43762 |
Commodities
| Primary | Manganese |
| Secondary | Iron |
| Tertiary | Copper, Lead, Barium-Barite, Silver |
Mine Details
| Status | Occurrence |
| Deposit Type | Replacement |
| First Production | 1951 |
| Last Production | 1951 |
| Discovery Year | 1939 |
| Data Source | USGS MRDS |
| Source ID | 10027120 |