DatoliteSuperior Mine, Superior, Houghton Co., Michigan, USA
Latitude: 47°4'38"N
Longitude: 88°36'5"W
An underground copper mine located near Baltic, MI. The Superior Mining Co. organized in 1904. It consisted of two shafts that worked the Baltic lode. The mine closed in 1920, and was purchased by Calumet & Hecla in 1925. No further work was conducted after this time. In sixteen years of operation, the Superior Mine produced approx. 30 million lbs. of refined copper. The piles are decent for copper and chalcocite minerals.
References
Dana 6: 1086.
Rocks & Min.: 58:109.
Kilpela, T, 1995, The Hard Rock Mining Era in the Copper Country. 89 pp.
Butler, B.S., and Burbank, W.S., 1929, The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pp.
Mineral List
14 entries listed. 10 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please
register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Mineral and Locality Search
