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Central Mine, Central, Keweenaw Co., Michigan, USA

Photo: 2005 Dave Maietta

Latitude: 47°24'30"N
Longitude: 88°11'55"W

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The Central Mine is located on a fissure deposit and consists of 4 shafts and 2 adits. The Central Mining Company was organized in 1854 and has the distinction of being the first mine to turn a profit in its first year of operation. Work continued until 1898 when all operations ceased. It was sold to the Frontenac Copper Company in 1905 and later absorbed by Calumet & Hecla. In its 44 years of operation, the Central produced 51 million lbs. of refined copper and a large amount of silver. This mine is a favorite of collectors for its wide variety of minerals that can be found.

Mineral List

21 entries listed. 16 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

Henwood, W.J. (1871): Observations on Metalliferous Deposits: On the Native Copper of Lake Superior. Transactions of the Royal Geological Society of Cornwall 8(1), 385-489.

Butler, B.S., and Burbank, W.S. (1929): The Copper Deposits of Michigan. USGS Prof. Paper 144, 238 pp.

The Copper Country Rock & Mineral Club (2001): Red Gold and Tarnished Silver, 2nd Ed., 44 pp.

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Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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