Mine detail: Mercedes Mine

Previously called 'Goya ISanta Rosa'

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Location

Lat / long:

-21.64227, -66.50556

Resource(M)

Primary:	Silver
Secondary:	Lead
Tertiary:	Cadmium, Zinc, Bismuth, Copper, Tin
Ore:	Chalcocite, Chalcopyrite, Galena, Malachite, Silver, Sphalerite, Stibnite
Gangue:	Hematite, Kaolinite, Limonite, Pyrite, Quartz, Siderite
Orebody form:	IRREGULAR

Production

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

Geology

Host rock:	Rondal Basalt;Rondal Basalt
Host type:	Dacite
Structure:	Dacite Porphyry Dome
Alteration processes:	Argillic Alteration In Areas Of Most Intense Fracturing, Chloritic Alteration In Less Fractured Areas, Centered Upon A Dacite Dome.

References

MRDS	BL10004
DEP	10086912
Reference	{Deposit:: MEDINA C., ALFONSO, AND IBANEZ V., VICTOR, 1988, CARACTERISTICAS GEOLOGICAS Y EVALUACION DEL POTENCIAL MINERAL DEL YACIMIENTO DE METALES PRECIOSOS DE MERCEDES, POTOSI-BOLIVIA: PROGRAMA DE LAS NACIONES UNIDAS PARA EL DESAROLLO, PROYECTO BOL/87/012, INFORME NU-18, 16P., MAPS 1:50,000; 1:10,000.}{Deposit:: PROYECTO LIPEZ-COMIBOL-70, 1971, MINA MERCEDES-GOYA, INFORME GE-05, SERVICIO GEOLOGICO DE BOLIVIA, 11P.}{Deposit:: VALENCIA, JOSE, 1973, ESTUDIO GEOLOGICO DE LA REGION ORIENTAL DEL CERRO BONETE: UNPUBLISHED THESIS, UNIVERSIDAD MAYOR DE SAN ANDRES, LA PAZ}{Deposit:: DEPARTAMENTO NACIONAL DE GEOLOGIA, GEOLOGICAL STUDY, 1964}{Deposit:: GEOBOL/COMIBOL PROYECTO LIPEZ, GEOLOGICAL AND GEOPHYSICAL STUDY, 1970-1971.}{Deposit:: VISITED OCT. 11, 1990 BY USGS/GEOBOL}{Deposit:: UNITED NATIONS DEVELOPMENT PROJECT, GEOLOGICAL STUDY, 1988}{Other Database:: CIMRI}
Reporter	Richter, Don (Usgs), Mosier, Dan, Long, Keith R.; Camacho M., Eduardo