Mine detail: Keystone Mine

Previously called ''

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Location

Lat / long: 45.69907, -112.31921

Resource(M)

Primary: Gold, Silver
Secondary: Copper
Ore: Bornite, Chalcopyrite, Covellite, Gold, Silver
Gangue: Pyrite

Production

Operation type: Unknown
Deposit type: Contact Metasomatic
Production size: Small
Development status: Past Producer

Geology

Host rock:Pre Belt
Host type:Gneiss
Alteration processes:Serpentized Wallrock

References

MRDSD009990
DEP10013599
Reference{Deposit:: MIN RES OF US, 1910-13}{Deposit:: MBMG MEM 19, P. 34}
ReporterLoen, Jeffrey S. (Pearson, Robert C.)