Commodities
PrimaryGold
SecondaryZinc, Silver, Copper, Lead
Commodity typeM
Deposit
Deposit sizeM
WorkingsSurface/Underground
Materials
Ore mineralsGold
GangueQuartz, Sericite, Talc
Geology
Host rockMafic Intrusive Rock,Schist,Serpentinite
Associated rockMafic Intrusive Rock
Economic & production
Development statusProducer
First production1911
Identification
Deposit ID10086501
MRDS IDX025319
Alternate namesSixteen-To-One Twenty-One, Tightner, Eclipse, Ophir
RegionNA
Data scoreB
Coordinates39.46378, -120.84825
References
MCCULLOCH, W. C., OESTERLING, W. A., SPURCK, W. H., & TISCHLER, M. S., 1964 , MINERALS FOR INDUSTRY, IN CALIF.: SO. PACIFIC COMPANY, VOL. 2 , P. 36 .AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 44 - 47 .FERGUSON, H. G., & GANNETT, R. W., 1932 , GOLD QTZ VEINS OF THE ALLEGHANY DISTRICT, CALIF.; USGS PROF. PAPER 172 , P. 106 - 109 .LOGAN, C. A., 1929 , SIERRA CO.: CDMM 25TH REPORT STATE MINERALOGIST, APRIL, P. 171 , 172 .LUCAS, JOHN M., 1992, USBM MINERALS TODAY, OCT. 1992, P. 30.MCCULLOCH ETAL, 1964 ; FERGUSON & GANNET, 1932