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Loon Lake Occurrence, Cook Co., Minnesota, USA



Detailed Mineral List:
Chalcopyrite
Formula: CuFeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Pyrite
Formula: FeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.


2 entries listed. 2 valid minerals.

References

Bilbrey, J.H. (1962) Cobalt: a materials survey: U.S. Bureau of Mines Information Circular 8103, 140 p. (See particularly page 29).

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