Present in Michigan County: Marquette; Geological Formation: ; Specific Mine Name: None; Commercial Mining History: None; Published Literature: ; Unpublished Literature: ; Comments: Trace amounts of Fluorite in some pegmatites; USGS Critical Mineral Reference: Hayes, T.S., Miller, M.M., Orris, G.J., and Piatak, N.M.,2017, Fluorine, chap. G�of�Schulz, K.J., DeYoung, J.H., Jr., Seal, R.R., II, and Bradley, D.C., eds., Critical mineral resources of the United States�Economic and environmental geology and prospects for future supply: U.S. Geological Survey Professional Paper 1802, p. G1�G80, http://doi.org/10.3133/pp1802G.
