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Pyrrhotite from
Calvert Mine (Calvert Hill Mine; Calvert Tungsten Mine; Red Button Mine), Calvert Hill District, Beaverhead Co., Montana, USA

Description
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	http://www.lrream.com/montanaskarns.html
Data
Mineral Data:	Click here to view Pyrrhotite data
Locality Data:	Click here to view Calvert Mine (Calvert Hill Mine; Calvert Tungsten Mine; Red Button Mine), Calvert Hill District, Beaverhead Co., Montana, USA

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