Present in Michigan County: Marquette; Geological Formation: ; Specific Mine Name: None; Commercial Mining History: None; Published Literature: Snelgrove, A. K., Seaman, W. A., Ayres, V. L. (1943) 'Strategic Minerals Investigations in Marquette and Baraga Counties', Progress Report No. 10, Geological Survey Division, Michigan Dept. of Conservation, Lansing, MI., p. 25,43, 60; Unpublished Literature: ; Comments: Limited numbers of small Beryl crystals identified in surface exposures of some pegmatites.; USGS Critical Mineral Reference: Foley, N.K., Jaskula, B.W., Piatak, N.M., and Schulte, R.F.,2017, Beryllium, chap. E�of�Schulz, K.J., DeYoung, J.H., Jr., Seal, R.R., II, and Bradley, D.C., eds., Critical mineral resources of the United [...]