Mine detail: Tres Hermanos Mine

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

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Location: Guanacaste, Costa Rica, North America
Lat / long: 10.30801, -84.94022
dep_id: 10007895
mrds_id: CS00129
Commodity type: metallic
Major mineral: Gold
Minor mineral: Silver
Operation type: Unknown
Production size: Production occurred
Development status: Producer
ore: Electrum, Galena, Gold, Sphalerite, Stibnite
gangue: Hematite, Pyrite, Quartz
orebody_fm: VEIN
model: 151: Epithermal vein, Sado
Reporter: Howe, Stephen S. (Cox, Dennis P.), Page, Norman J.
hrock_type: Dacite
arock_type: Dacite
References:
  • 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)
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