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 of Conservation, Lansing, MI., p. 44, 61; Unpublished Literature: ; Comments: assay test showed 0.16% Bi; USGS Critical Mineral Reference:
