Caylloma Mine

Arequipa, Peru

SilverGoldCopperZincLead

Description

The Veins Were Deeded By Charles V Of Spain To A Certain Francisco Noguerol De Vlloa In 1541, And Have Been Worked Intermittently Since That Time. They Are Among The Most Renowned Of The Peruvian Silver Deposits And Have Been Described Or Mentioned By Many Writers, (See General References).

Commodities

PrimarySilver, Gold

SecondaryCopper, Zinc, Lead

Commodity typeM

Deposit

Deposit sizeY

Ore controlThe Largest Vein Is San Cristobal, Containing Strongly Banded White Quartz, Pink, Green Or Brown Rhodonite, And Calcite With Pyrite, Galena, Sphalerite, Chalcopyrite, Argentite, Ruby Silver, Polybasite, And A Little Tetrahedrite. Native Silver And Pyrargyrite Found In Upper Parts Of Vein. Wavellite Has Been Reported.

Materials

Ore mineralsArgentite, Chalcopyrite, Galena, Sphalerite, Tetrahedrite

GangueCalcite, Pyrite, Rhodonite

Geology

Host rockVolcanic Rock (Aphanitic)

StructureThe Principal Rocks Of The Caylloma Area Are Flat-Lying Andesite Volcanics. These Rocks Are In Fault Contact With Dark Carbonaceous Shales. The Volcanic Rocks Are Mainly Flows But Also Include Some Flow Breccias And Pyroclastics. All Veins Exploited Or Explored To Date (1960) Are Enclosed In Volcanic Rocks. In General The Veins Strike Ne And Dip 55-80 Se.

Tectonic settingAndean Cordillera

AlterationWall Rock Is Pyritized And Argillized Near The Veins And May Be Strongly Propylitized For As Much As 20 M From Vein Walls.

Economic & production

Development statusProducer

Discovery year1000

Identification

Deposit ID10068904

MRDS IDW002175

Alternate namesCaulloma, Cayalloma

RegionSA

Data scoreB

Coordinates-15.21442, -71.81628

References

SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 537PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU, NOV. 1969HUNT, B., 1896, INFORME SOBRE EL DISTRITO MINERO DE CAILLOMA: SOC. GEOG. LIMA BOL., V. 6, P. 414-417.CARROLL, C.M., 1908, DATOS SOBRE EL BENEFICIO DE LOS MINERALES DE PLATA DE LAS MINAS DE CAYLLOMA: SOC. ING. PERU BOL., V. 10, P. 479-503.VELARDE, CARLOS E., 1908, LA MINERIA EN EL PERU: 365 P. LIMA, MINISTERIO DE FOMENTO, IMPRENTA LA OPINION NACIONAL, P. 253-255.BASADRE, CARLOS, 1918, ESTADO ACTUAL Y PORVENIR DE LA INDUSTRIA MINERA EN LOS DEPARTAMENTOS DEL SUR: CUERPO DE ING. DE MINAS DEL PERU BOL. NO. 93, 64 P., P. 20-26, 46-51.FORT, MICHEL, 1926, LA INDUSTRIA MINERA DEL PERU ENEL ANO DEL CENTENARIO 1921: BOL. MINAS, IND. Y CONSTR., SER. 2, V. 15, P. 61-62.TORRICO Y MESA, JUAN, 1888, SOMERA DESCRIPCION DEL VIAGE A LOS DEPARTAMENTOS DE AREQUIPA Y PUNO EN 1888: BOL. MINAS, IND. Y CONSTR., SER. 1, V. 4, P. 30-31.CAVANAGH, J., AND GLOVER, M., 1991, THE PERU REPORT'S GUIDE TO MINES AND MINERS IN PERU: LIMA, PERU, PERU REPORTING SERVICIOS EDITORIALES S.R.L., P. 120-123.ENGINEERING AND MINING JOURNAL, 1984, NOVEMBER 1984, P. 96.1960 COMPILE FRANK SIMONS, UNPUB. REPF. SIMONS, 1960, UNPUB. REP.; CAVANAGH AND GLOVER (1991); E&MJ (1984)METALLOGENIC MAPS OF PERU. 1969, 1972