Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Caledonia Mine, Mass City, Ontonagon Co., Michigan, USA

This page is currently not sponsored. Click here to sponsor this page.
 
 
An underground copper mine consisting of two shafts and four adits located approx. 40 miles SW of Houghton, MI. The Caledonia Mining Co. was organized in 1863 after purchasing the Nebraska and Kansas Mining Co. properties. Operations continued until 1871, when Caledonia and the Flinsteel Copper Co. merged together. In 1872, the mine closed having produced approx. 903,000 lbs. of refined copper. From 1873 to 1881, the mine was tributed and another 330,000 lbs. of copper was produced, including one mass weighing 40 tons. The mine was dormant until 1937, when Calumet & Hecla reopened the #4 adit for exploration, but stopped the project due to World War 2. In 1950, C&H returned to continue exploration, drifting, and stoping. Between 1951 and 1958, C&H removed approx. 5.5 million lbs. of refined copper from the #4 adit. In 1985, Red Metal Explorations acquired the Caledonia Mine and conducted exploration of the property until 2013, when Evergreen Explorations purchased the property. The mine is the centerpiece for a week long series of mineral collecting field trips in August put on by local organizations. The mine is exceptional for copper, silver, and datolite, as well as a range of microminerals.

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

Rocks & Min.: 58:112; 63:494; 65:240-243

Butler, B.S., and Burbank, W.S., 1929, The Copper Deposits of Michigan. U.S. Geological Survey. Professional Paper 144. 238 pp.

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

Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: March 28, 2015 22:21:51 Page generated: March 28, 2015 04:15:27