Commodities
PrimaryGold
SecondarySilver, Lead
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formMASSIVE, RIBBON & SHEARED
Materials
Ore mineralsGalena, Gold, Pyrite
GangueQuartz
Geology
Host rockDiabase
StructureTo Nw, Vein In Fracture Zone
Economic & production
Development statusPast Producer
Identification
Deposit ID10007273
MRDS IDC010970
RegionNA
Data scoreC
Coordinates39.19211, -121.06436
References
MACBOYLE, E., 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 162 - 163 .JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 79 - 82 .MACBOYLE ( 1918 )