Puerto Rico
Occurrence

La Mina, Rio Blanca

Puerto Rico, United States
IronGoldSilverCopper
⌖ Show on mapUSGS source ↗
Description

Caguas Copper Company

Commodities
TertiaryIron, Gold, Silver, Copper
Commodity typeM
Deposit
Model59: Skarn Cu
Deposit sizeN
Orebody formTABULAR
Materials
Ore mineralsChalcopyrite, Pyrite
GangueDiopside, Garnet, Quartz, Wollastonite
Other materialsPyrrhotite
Geology
Host rockCarbonate · Tabonuco Formation
Associated rockDiorite
StructureGranodiorite Intruded Along A North-East Trending Anticlinal Axis, Northwest Trending Regional Faults
AlterationMainly Silicification In Tuffs;Limestones Of Garnet,Clinozoisite,Wollastonite
Economic & production
Development statusOccurrence
Discovery year1958
Identification
Deposit ID10085459
MRDS IDW701050
Alternate namesSpanish Adit
RegionCR
Data scoreB
Coordinates18.26177, -65.80945
References
COX, DENNIS P., AND BRIGGS, REGINALD P., 1973, METALLOGENIC MAP OF PUERTO RICO: U.S. GEOLOGICAL SURVEY, MISCELLANEOUS GEOLOGIC INVESTIGATIONS MAP I-721, ACCOMPANIED BY EXPLANATORY PAMPHLET, 6 P.BERGEY, W.R.,1960, REPORT ON LA MINA PROJECT, CAGUAS COPPER COMPANY, INC., COMMONWEALTH OF PUERTO RICO, AD.FRAZIER PRIVATE REPORT ON FILE WITH THE DEPT. OF NATURAL RESOURCES, PUERTO RICO.BERGEY, W.R.,1958, REPORT ON THE MINERAL DEPOSITS OF LUQUILLO AREA, CAGUAS CONCESSION, PUERTO RICO; A PRIVATE REPORT AT THE DEPT. OF NATURAL RESOURCES, SAN JUAN, PUERTO RICO.CRAGO, WILLIAM H.,1945, REPORT ON IRON ORE DEPOSITS IN PUERTO RICO FOR PUERTO RICO DEVELOPMENT CO.; DEPT. OF NATURAL RESOURCES, PUERTO RICO.PEASE, M. H., JR., 1966, SOME CHARACTERISTICS OF COPPER MINERALIZATION IN PUERTO RICO, IN CARIBBEAN GEOL. CONF., 3D, KINGSTON, JAMAICA, 1962, TRANS.: JAMAICA GEOLOGICAL SURVEY PUB. 95, P. 107-112.MEYERHOFF, H. A., 1931, THE GEOLOGY OF THE FAJARDO DISTRICT, PORTO RICO: NEW YORK ACAD. SCI., SCI. SURVEY OF PORTO RICO AND THE VIRGIN ISLANDS, V. 2, PT. 3, P. 201-360.COX, D. P., MARVIN, R. F., M'GONIGLE, J. W., MCINTYRE, D. H., AND ROGERS, C. L., 1977, POTASSIUM-ARGON GEOCHRONOLGY OF SOME METAMORPHIC, IGNEOUS, AND HYDROTHERMAL EVENTS IN PUERTO RICO AND THE VIRGIN ISLANDS: U.S. GEOLOGICAL SURVEY JOUR. RESEARCH, VOL. 5, NO. 6, P. 689-703.