Mine detail: Jahnke Mine

Previously called 'Montana OrewayStraight Tip'

<< Back to the map

Location

Lat / long:

45.18906, -113.58785

Resource(M)

Primary:	Silver, Lead, Copper
Secondary:	Tungsten, Gold
Ore:	Bornite, Chalcopyrite, Copper, Cuprite, Galena, Gold, Malachite, Scheelite
Gangue:	Calcite, Chlorite, Epidote, Hematite, Magnetite, Quartz, Tourmaline
Orebody form:	QUARTZ STRINGERS
Discovery year:	1892

Production

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

Geology

Host rock:	Lemhi
Host type:	Quartzite
Associated type:	Diorite
Structure:	Sill, As Much As 100-Ft. Wide

References

MRDS	W013403
DEP	10070460
Reference	{Deposit:: MBMG BULL 85.}{Deposit:: USBM RI 6334}{Deposit:: USGS BULL 574, P. 77.}{Deposit:: SASSMAN, O., 1941 MA THESIS, MT STATE UNIV., P. 280}{Deposit:: 1914 RECON WINCHELL, A.N., U.S.G.S. BULL. 574}{Deposit:: 1972 COMPILE M.B.M.G. BULL. 85}{Production:: GEACH, 1972, MBMG BULL. 85.}
Reporter	Mlynarczyk, Meg S.; Krohn, D., Loen, Jeffrey S. (Pearson, Robert C.)