Mine detail: Jamestown Mine

Previously called 'CrystallineDutch AppNymanJumperAnd Rawhide MinesIncludes Harvard'

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Location

Lat / long: 37.94992, -120.41767

Resource(M)

Primary: Gold
Secondary: Silver
Ore: Gold, Pyrite, Silver
Gangue: Ankerite, Quartz, Sericite, Talc
Discovery year: 1850

Production

Operation type: Unknown
Production size: Yes
Development status: Producer
First production started: 1899

Geology

Host type:Schist,Serpentinite
Structure:Melones Fault Zone
Alteration processes:Carbonatization

References

MRDSW017801
DEP10072448
Reference{Deposit:: MINING MAGAZINE, JAN., 1988, P. 50.}{Deposit:: BLISS, JAMES D., AND JONES, GAIL M., 1988, MINERALOGIC AND GRADE-TONNAGE INFORMATION ON LOW-SULFIDE AU-QUARTZ VEINS: U. S. GEOLOGICAL SURVEY OPEN-FILE REPORT 88-229, 99 P.}{Deposit:: JULIHN, C. E., AND HORTON, F. W., 1940, MINES OF THE SOUTHERN MOTHER LODE REGION, PART II-TUOLUMNE AND MARIPOSA COUNTIES: U. S. BUREAU OF MINES BULLETIN 424, 179 P.}{Deposit:: ARGALL, GEORGE O., JR., 1987, SONORA GOLD MAKES FLOTATION CONCENTRATES AT JAMESTOWN: ENGINEERING AND MINING JOURNAL, DEC., P. 38-39.}{Deposit:: ALLGOOD, G. M., LOVEJOY, M. E., AND ALLGOOD, R. W., 1985, JAMESTOWN GOLD MINE, TUOLUMNE COUNTY, CALIFORNIA: SONORA MINING CORPORATION, 6 P.}{Deposit:: SKILLING*MINING REVIEW STAFF, 1984, SONORA GOLD CORP* PROJECT FOR OCT. 1984-START UP IN MOTHER LODE: VOL. 73, NO. 20, MAY 19, P. 2-4.}{Production:: ALLGOOD AND OTHERS, 1985.}
ReporterWeeks, Robert, Paidakovich, Matthew E.