Mine detail: Piedras Grandes Occurrence

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Location: Guanacaste, Costa Rica, North America
Lat / long: 10.36913, -85.73329
dep_id: 10007824
mrds_id: CS00044
Commodity type: metallic
Trace mineral: Manganese
Operation type: Unknown
Production size: No production occurred
Development status: Occurrence
model: 97: Volcanogenic Mn
Reporter: Howe, Stephen S.
hrock_type: Shale
tectonic: Nicoya Ophiolite Complex
References:
  • Deposit:: SEARS, J. D., 1919, DEPOSITS OF MANGANESE ORE IN COSTA RICA: U.S. GEOL. SURV. BULL. 710-C, P. 76.
  • Deposit:: 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.
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