Mine detail: Chefoo Tunnel

Previously called 'Probably Same As Birthday MineRound Hill Prospect'

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Location

Lat / long:

41.82766, -117.58681

Resource(M)

Primary:	Silver, Gold
Tertiary:	Arsenic, Iron, Zinc, Antimony, Copper
Ore:	Chalcopyrite, Marcasite, Pyrite, Sphalerite, Stibnite
Discovery year:	1915

Production

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

Geology

Host type:	Rhyolite
Alteration processes:	Sericite, Calcite, Pyrite, Clay, Silicic

References

MRDS	M232767
DEP	10098620
Reference	{Deposit:: WILLDEN, R., 1964, GEOLOGY AND MINERAL DEPOSITS FO HUMBOLDT COUNTY, NEVADA: NEV. BUREAU OF MINES BULL. 59}{Deposit:: LINDGREN, W, 1915, GEOLOGY AND MINERAL DEPOSITS OF THE NATIONAL MINING DISTRICT, NEV: U.S.G.S. BULL 601.}{Deposit:: LAWRENCE, E. F., 1963, ANTIMONY DEPOSITS OF NEVADA; NEV. BUR MINES BULL. 61.}{Deposit:: 1979 MILS DATA}{Deposit:: TINGLEY, J. V., 29 SEP 84, NBMG FIELD EXAMINATION}{Deposit:: NBMG STAFF, 1985, NBMG OFR 85-3.}{Production:: LINDGREN, W, 1915.}
Reporter	La Pointe, D. D., Li, Zhiping (Peters, S.)