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Centennial No. 6 Shaft, Centennial Mine, Centennial, Houghton Co., Michigan, USA

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Centennial #6 was started in the 1870's in hopes of reaching the Calumet Conglomerate lode, which it did. #6 also mined the Osceola Amygdaloid and the Kearsarge Lode through a crosscut. In 1923 it was bought by Calumet & Hecla. In the 1970's Homestake Mining dewatered the mine to the 32nd level in hopes of finding another profitable orebody; it did not, and the project was abandoned in the early 1990's. Nice specimens of copper, especially copper "skulls" can be found here, as well as gemmy epidote crystals in the conglomerate. The mine is still privately owned, and permission must be granted before visiting.

Mineral List


9 valid minerals.

This page 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

Minerals Today, Jan, 1990:34.

The Copper Country Rock & Mineral Club, 2001, Red Gold and Tarnished Silver, 2nd Ed.

Mineral and/or Locality  
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