Mine detail: Columbia Mine

Previously called 'Black Rock Group, Blue Rock GroupNBMG Sample Site 2962'

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Location

Lat / long: 41.51654, -118.80351

Resource(M)

Primary: Gold, Silver
Secondary: Arsenic, Copper
Tertiary: Antimony
Ore: Gold, Stibnite
Orebody form: TABULAR
Discovery year: 1875

Production

Operation type: Unknown
Production size: Small
Development status: Past Producer
First production started: 1875

Geology

Host type:Diorite,Slate
Associated type:Diorite
Alteration processes:Argillic

References

MRDSM232688
DEP10045036
Reference{Deposit:: VANDERBURG, W.O., 1938, RECONNAISSANCE OF MINING DISTRICTS IN HUMBOLDT, COUNTY, NEVADA; USBM INF. CIRC. 6993.}{Deposit:: WILLDEN, R, 1964, GEOLOGY AND MINERAL DEPOSITS OF HUMBOLDT COUNTY, NEVADA; NBMG, BULL. 59.}{Deposit:: LAWRENCE, E.F.,1963, ANTIMONY DEPOSITS OF NEVADA; NBMG, BULL. 61.}{Deposit:: QUADE, JACK, 28 SEP 84, NBMG FIELD EXAMINATION AND SAMPLE ANALYSIS. #5. NBMG STAFF, 1985, NBMG OFR 85-3.}{Production:: WILLDEN,R., 1964}
ReporterLa Pointe, D.D., Li, Zhiping (Peters, S.)