Mine detail: Fern Mine

Previously called 'Fern Quicksilver Mining Co.'

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Location

Lat / long:

44.90708, -115.29096

Resource(M)

Primary:	Mercury
Ore:	Cinnabar
Discovery year:	1917

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Limestone
Host type:	Limestone
Associated rock:	Idaho Batholith-Quartz Monzonite, Granodiorite
Associated type:	Quartz Monzonite,Diorite
Alteration processes:	Silicification Of Limestone

References

MRDS	M055155
DEP	10040397
Reference	{Deposit:: BAILEY, E.H., USGS, PERSONAL FILES}{Deposit:: BAILEY, E. H., 1964 , MINERAL RESOURCE - MERCURY, IN MINERAL AND WATER RESOURCES OF IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY, SPEC. REPT. NO. 1 , P. 119 - 123}{Production:: USBM DATA}
Reporter	Bergquist, Joel R., Siefken, Robert R. (Miller, Pat)