Past Producer

Rosita

Nicaragua
CopperGoldSilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryCopper, Gold, Silver
Commodity typeM
Deposit
Model59: Skarn Cu
Deposit sizeM
WorkingsSurface/Underground
Ore controlGold Associated With Nnw Fault; Principal Copper Ore Body Along S Flank Of Small Diorite Intrusion; Orebodies Partly Locallized Along Steep Dipping Nnw And Ne/50-70nw Shears.
Materials
Ore mineralsBornite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Covellite, Cuprite, Gold, Malachite, Pyrite, Tenorite
GangueChlorite, Garnet, Magnetite, Orthoclase, Pyrrhotite, Quartz
Geology
Host rockLimestone · Metapan Formation;Yojoa
Associated rockMonzonite,Diorite,Andesite
StructureMiogeosyncline, Breccia Pipe In Center Of Pit?
Tectonic settingChortis Block-Central Nicaraguan Uplift
AlterationIntense Ca, K, And Si Metasomatism; Alteration Of Calcareous Sediments To Marble Or Quartz-Garnet-Orthoclase Skarn, And Andesites To Epidote Skarn Or Siliceous Skarn.
Economic & production
Development statusPast Producer
Production years1906-1912; 1959-1971
Discovery year1906
Identification
Deposit ID10086142
MRDS IDW702070
Alternate namesIncludes 18 Claims, Santa Rita, Rosita Copper Mine
RegionNA
Data scoreA
Coordinates13.91756, -84.39993
References
INSTITUTO CENTROAMERICANO DE INVESTIGACION Y TECNOLOGIA INDUSTRIAL (ICAITI), 1970, MAPA METRALOGENETIO DE AMERICA CENTRAL; 1:2000000 & ESTUDIOS METALOGENETICOS DE AMERICA CENTRAL: PUBLICIONES GEOLOGICAS DEL ICAITI NUMERO III, 76 P.ROBERTS, R.J., AND IRVING, E.M., 1957, MINERAL DEPOSITS OF CENTRAL AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1034, P. 62-63.BEVAN, P.A., 1973, ROSITA MINE - A BRIEF HISTORY AND GEOLOGICAL DESCRIPTION: CIM BULLETIN VOL. 66, NO. 736, P. 80-84.KONDAKOV, L.A., AND NABROVENKOV, O.S., 1983, PRINCIPAL CHARACTERISTICS OF THE METALLOGENY OF NICARAGUA - IZVESTIYA AKADEMII NAUK SSSR, SERIYA GEOLOGICH ESKAYAS V. 1983, P. 91-104.ROBERTS AND IRVING, 1957; BEVAN, 1973; MINE RECORDS.