Mica Group from selected localities.
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| The Iron Mines of NJ (1910), Bayley:460-461. |
| The Iron Mines of NJ (1910), Bayley: 434. |
USA | |
| U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| The Iron Mines of NJ (1910), Bayley:460-461. |
| The Iron Mines of NJ (1910), Bayley: 434. |