Commodities
PrimaryGold
TertiaryCopper, Lead
Commodity typeM
Deposit
Deposit sizeS
WorkingsSurface/Underground
Materials
Ore mineralsChalcopyrite, Galena
GangueCalcite, Feldspar, Pyrite, Quartz
Geology
Host rockDiorite · Berners Formation
Associated rockDiorite · Jualin Diorite
StructureComet Vein Cut Off By Fault To The N; Extension Not Found
Economic & production
Development statusPast Producer
First production1894
Last production1901
Discovery year1891
Identification
Deposit ID10001362
MRDS IDA012103
RegionNA
Data scoreB
Coordinates58.85531, -135.07456
References
USGS 18TH ANNUAL REPORT, PART 3, P. 76-77USGS BULL 287, P. 136-137USGS BULL 284, P. 32USGS BULL 446, P. 42-43USGS BULL 1246, P. 160METZ, PAUL A. AND WIEBMER, JOHN D., 1977, M.I.R.L. SUMMARY FILE REPORT; EUREKA, KENSINGTON, COMET, JOHNSON AND JUALIN MINE, BERNER'S BAY, JUNEAU DISTRICT, ALASKA: UNPUBLISHED REPORT TO USBM, FIELD OPERATIONS CENTER, JUNEAU, AK.USGS OFR 85-717, NO. J098BAG-OFR-85-717-098