Description
Hildebrand & Smith, Usgs
Commodities
PrimaryKaolin
SecondaryQuartz
TertiaryGold, Aluminum, Potassium, Talc-Soapstone, Copper
Commodity typeB
Deposit
Model154: Epithermal quartz-alunite Au
Deposit sizeM
Orebody formELONGATE IRREGULAR LENS
Ore controlEast-West Zone = Fault?
Materials
Ore mineralsAlunite, Halloysite, Kaolinite, Pyrophyllite
GangueDiaspore, Quartz, Sericite
Geology
Host rockAndesite · Ucret-Tert Alunitized Zone
Associated rockRhyolite,Andesite
AlterationArgillic Or Propylitic
Economic & production
Development statusOccurrence
Discovery year1952
Identification
Deposit ID10009296
MRDS IDD002191
RegionCR
Data scoreC
Coordinates18.24427, -66.18418
References
HILDEBRAND, F. A., AND SMITH, R. J., 1959 , OCCURRENCES OF ALUNITE, PYROPHYLLITE, AND CLAYS IN THE CERRO LA TIZA AREA, PUERTO RICO: USGS OPEN-FILE REPT. 469 , 82 P.HILDEBRAND, F. A., 1961 , HYDROTHERMALLY ALTERED ROCKS IN EASTERN PUERTO RICO: USGS PROF. PAPER 424 -B, P. 219 - 221COX, 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.SOLOMIAC, HENRI, 1972, 1972 ANNUAL OPERATORS REPORT, PUERTO RICO: PARNASSE COMPANY PRIVATE REPORT ON FILE AT THE DEPARTMENT OF NATURAL RESOURCES, PUERTO RICO.HILDEBRAND, F. A., 1960, ZONES OF HYDROTHERMALLY ALTERED ROCKS IN EASTERN PUERTO RICO: CARIBBEAN GEOL. CONF., 2D, MAYAGUEZ, PUERTO RICO, 1959, TRANS., P. 130-136.PEASE, M. H., JR., AND BRIGGS, R. P., 1960, GEOLOGY OF THE COMERIO QUADRANGLE, PUERTO RICO: U.S. GEOLOGICAL SURVEY MISC. GEOL. INV. MAP I-320.194? DIREXPL UNKNOWN PROSPECTORS1952 GEOLMAP F. A. HILDEBRAND AND R. J. SMITH: OPEN-FILE REPT. NO. 469HILDEBRAND, F. A., AND SMITH, R. J., 1959 , USGS OPEN-FILE REPT. 469 , 82 P.