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Laurium Mine, Laurium, Houghton Co., Michigan, USA

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An underground copper mine located just south of Laurium. The prospect was discovered in 1904 by diamond drilling exploration, and a shaft was sunk in 1907. In 1909, the Calumet & Hecla Consolidated Copper Co. took over operations and continued mining until 1920 when the mine closed because of water problems. The shaft reached the 12th level (approx. 1,000 ft. deep) and some exploratory drifting was done. For variety of minerals, Laurium provides perhaps the best collecting in the Keweenaw, especially for the micro-mineral collector.

Mineral List



19 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

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

Mineral and/or Locality  
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