Puntarenas
Occurrence

La Union Mine

Puntarenas, Costa Rica
GoldSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
SecondarySilver
Commodity typeM
Deposit
Model151: Epithermal vein, Sado
Deposit sizeN
WorkingsUnknown
Orebody formVEIN
Materials
GangueChalcopyrite, Galena, Pyrite, Quartz, Sphalerite
Geology
Host rockAndesite
Associated rockPlutonic Rock
AlterationSilicification Of Andesite Locally Near Quartz Veins And Development Of Chlorite, Sericite, And Calcite With Lt 1 % Disseminated Pyrite.
Economic & production
Development statusOccurrence
Identification
Deposit ID10007906
MRDS IDCS00141
RegionNA
Data scoreB
Coordinates10.15802, -84.72077
References
REITZ, M. F., 1902, THE GOLD MINES OF COSTA RICA: ENG. MIN. J., V. 74, P. 212.BENNETT, EVAN, 1939, GOLD MINING IN COSTA RICA: ENG. MIN. J., V. 140, P. 56-58.DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS (DGMH) UNPUBLISHED FILES VIEWED 1986.VISITED BY USGS SCIENTISTS, 1986. ORGANIZACION DE LOS ESTADOS AMERICANOS, 1978, DIAGNOSTICO DEL SECTOR MINERO: SAN JOSE, ORGANIZACION DE LOS ESTADOS AMERICANOS, 91 P.U.S. GEOLOGICAL SURVEY, DIRECCION GENERAL DE GEOLOGIA, MINAS E HIDROCARBUROS, UNIVERSIDAD DE COSTA RICA, 1987, MINERAL RESOURCE ASSESSMENT OF THE REPUBLIC OF COSTA RICA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS INVESTIGATION SERIES MAP I-1865, 75 P.