Silver Reef Mine

Pinal County, Arizona, United States

SilverLeadCopperGoldSilicaMolybdenum

⌖ Show on map USGS source ↗

Commodities

PrimarySilver

SecondaryLead, Copper, Gold, Silica

TertiaryMolybdenum

Commodity typeM

Deposit

Deposit sizeS

WorkingsUnderground

Orebody formLENSES

Ore controlE-W Fractures, Minor Nw Striking Faults, Main Ew Vein Dips 75-77 S

Materials

Ore mineralsArgentite, Chrysocolla, Galena, Silver, Wulfenite

GangueLimonite, Quartz

Geology

Host rockGranite

Associated rockVolcanic Rock (Aphanitic),Andesite · Oracle Granite Of Peterson;Vesicular Andesite

StructureE-W Striking Fault With Minor Nw Striking Faults, E-W Fracture Zone With Minor Nw Striking Faults, Mf-934 Maps E-W, Mineralized Zone, Mainly In Oracle Granite, With Some Adjacent Tertiary Andesite

Economic & production

Development statusPast Producer

First production1905

Last production1955

Discovery year1885

Identification

Deposit ID10046277

MRDS IDM241169

Alternate namesHornsilver, Silver Nugget MineNugget Mine, Lead Boulder Mine, Greenhorn Mine, Santiago, Cholla, Horn Silver Mine

RegionNA

Data scoreB

Coordinates32.66816, -111.81821

References

ABGMT-USBM FILE DATAADMR FILE DATABLM DISTRICT SHEET 561USGS. MF-934PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.CIMRI