Limonite from selected localities.
USA | |
| Rocks & Min.: 19:306-309. |
| Mineral Collector 15: 113-118, Papke, H. (1908); Rocks & Min.: 59:157-183, Peters, Joseph J. (1984). |
| Bayley, William Shirley (1910), The Iron Mines of New Jersey, MacCrellish & Quigley, state printers, 1910: 52, 85-86. |