Mine detail: Negra Mine

Previously called 'AvaroaLa Negra'

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Location

Lat / long:

-21.0384, -68.297

Resource(M)

Primary:	Silver, Manganese
Gangue:	Alunite, Chalcedony

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	None
Development status:	Occurrence

Geology

Host type:	Tuff
Alteration processes:	Silicification, Oxidation, Argillization, Kaolinization

References

MRDS	BL10104
DEP	10005914
Reference	{Deposit:: SANJINES, R., 1968, INFORME DE ASISTENCIA TECNICA MINERA A LA PROPIEDAD DE LA COOPERATIVE MINERA INDUSTRIAL EL PORVENIR LIMITADA: SERVICIO GEOLOGICO DE BOLIVIA, UNPUBLISHED REPORT, 14P., MAPS 1:1,000, 1:500, 1:200}{Deposit:: ESPINOZA, A., 1990, MINTEC INTERNAL REPORT}{Deposit:: GUSTAVSON ASSOC., 1992, COMPENDIUM OF THE ECONOMIC GEOLOGY OF BOLIVIA}{Deposit:: GEOLOGICAL INVESTIGATIONS BY SANJINES (1968}{Other Database:: CIMRI}
Reporter	Long, Keith R., Guerra, Edwin