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USA | |
| [var. Illite] Lau, T. R. (2011). Individual Grain Analysis of the Rare Dioctahedral Mica Celadonite Using Analytical Transmission Electron Microscopy. |
| Myers, P., E.R. Maye, M. L. Cummings & D. R. Maercklein (1974), Precambrian rocks of the Chippewa Region, Wisconsin, in: 38th Annual Tri-State Geological Field Conference Guidebook, Eau Claire, Wisconsin, P.E. Myers (editor): 35-39. |
| William S. Cordua collection |
Muskrat Creek pegmatite, Wilson Township, Eau Claire County, Wisconsin, USA