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Osceola Mine, Osceola, Houghton Co., Michigan, USA

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Latitude & Longitude (WGS84): 47° 14' North , 88° 27' West
Latitude & Longitude (decimal): 47.2333333333, -88.45
Other regions containing this locality:Keweenaw Peninsula, Michigan, USA

An underground copper mine consisting of 11 shafts around Calumet. The Osceola Mining Co. organized in 1873 and worked the Calumet Conglomerate. In 1877, the Osceola Amygdaloid was discovered. In 1879, it merged with the Opechee Mining Co. to form the Osceola Consolidated Mining Co. In 1897, the company opened up the Kearsarge Lode by starting the North and South Kearsarge Mines. In 1909, Calumet & Hecla took control of Osceola and later merged it with its operations in 1923. Calumet & Hecla worked the mine until it closed in 1931. In the 1950's, C&H reopened the mine and worked it until the 1968 labor strike, at which time all C&H operations were closed for good. The best mineral hunting is found at Osceola shafts #3 and #4, where copper crystals and wires are found. Osceola #1 and #2 are also great for copper "skulls", silver crystals, and datolite crystals.

Mineral List

Mineral list contains entries from the region specified including sub-localities

20 valid minerals.

Localities in this Region

The above list contains all mineral locality references listed on 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 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.


Rocks & Minerals: 58:109.

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

Kilpela, T, 1995, The Hard Rock Mining Era in the Copper Country. 89 pp.

Tschernich, R. (1992): Zeolites of the World, 66

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