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USA | |
| Buchholz, Thomas W., Falster, Alexander U. and Simmons, Wm. B. (2016) Pegmatite Mineralogy of the Waterloo Quarry, Southern Wisconsin, USA. in Second Eugene E. Foord Pegmatite Symposium July 15-19, 2016 Colorado School of Mines campus, Golden, Colorado |
| Rocks and Minerals, (1987) 62:188-195 Falster, Alexander U. (1981) Minerals of the Wausau Pluton. The Mineralogical Record, 12 (2) 93-97 |
| Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399 |