An underground copper mine consisting of one shaft and one adit near the town of Mass City, MI. The Ogima Mining Co. was organized in 1860 even though work had started in 1857. The mine worked until 1868 when it closed. The mine was leased to tributers sporadically until 1888 when the mine closed for good. The mine was absorbed by Mass in 1899. The mine has produced some very nice copper, silver, and a few datolites.
Mineral List
2 entries listed. 2 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.
References
Butler, B.S., and Burbank, W.S., 1929, The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pp.
Mineral and Locality Search
