Arizona · Cochise County
Producer

Reef Mine

Cochise County, Arizona, United States
TungstenSilverGoldQuartzLeadCopperZincTellurium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryTungsten, Silver, Gold
SecondaryQuartz
TertiaryLead, Copper, Zinc, Tellurium
Commodity typeB
Deposit
Deposit sizeS
Orebody formIRREGULAR, SPORADIC BUNCHES
Ore controlBedding
Materials
Ore mineralsChalcopyrite, Galena, Gold, Scheelite, Silver
GangueQuartz
Geology
Host rockLimestone · Abrigo Limestone
AlterationBarren Qtz Veins
Economic & production
Development statusProducer
Production years1916-18; 1934-42; 1953-54; 1956
First production1875
Last production1956
Discovery year1895
Identification
Deposit ID10109798
MRDS IDM241502
Alternate namesTungsten Reef, Exposed Reef, Sitric
RegionNA
Data scoreB
Coordinates31.42708, -110.28844
References
DALE, ET AL, 1961, USBM RI 5650.CREASEY, S.C.,1923.USBM FILES.KEITH, S.B., ARIZONA BUREAU OF MINES BULLETIN 187, 1973, P. 67.WILSON, ABM BULL 148, P. 48-49.SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: U.S. BUREAU OF MINES SPECIAL PUBLICATION, 334 P.CIMRIDALE - RI 5650; SAWYER AND OTHERS, 1992.