Mine detail: Tres Hermanos Mine

Previously called 'NisperoIncludes the Tres HermanosEl LimonTerciopelaBalsaPedernaland Palo Negro Veins.'

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Location

Lat / long: 10.30801, -84.94022

Resource(M)

Primary: Gold
Secondary: Silver
Ore: Electrum, Galena, Gold, Sphalerite, Stibnite
Gangue: Hematite, Pyrite, Quartz
Orebody form: VEIN

Production

Operation type: Unknown
Production size: Yes
Development status: Producer

Geology

Host type:Dacite
Associated type:Dacite

References

MRDSCS00129
DEP10007895
Reference{Deposit:: REITZ, M. F., 1902, THE GOLD MINES OF COSTA RICA: ENG. MIN. J., V. 74, NO. 7, P. 213.}{Deposit:: GIOVANI SOSTO, MINE OWNER, ORAL COMMUNICATION, 1986.}{Deposit:: ORGANIZACION DE LOS ESTADOS AMERICANOS, 1978, DIAGNOSTICO DEL SECTOR MINERO: SAN JOSE, ORGANIZACION DE LOS ESTADOS AMERICANOS, 91 P.}{Deposit:: VISITED BY USGS SCIENTISTS, 1986.}{Deposit:: ANON., 1994, ARIE* SAN MARTIN MINE PROCEEDING ON SCHEDULE: LATIN AMERICAN MINING NEWS, JUNE 8, 1994, P. 52.}{Deposit:: ANON., 1995, ARIEL LARGEST PRODUCER OF GOLD IN COSTA RICA: THE NORTHERN MINER, MARCH 27, 1995, V. 81, NO. 4, P. B-1 AND B-2.}{Production:: ANON. (1994)}
ReporterHowe, Stephen S. (Cox, Dennis P.), Page, Norman J.