The Heavy Weight Mine is a copper mine located in Pima county, Arizona at an elevation of 4,501 feet.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Mine Info
Elevation: 4,501 Feet (1,372 Meters)
Commodity: Copper
Lat, Long: 31.86417, -110.77972
Map: View on Google Maps
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Heavy Weight Mine MRDS details
Site Name
Primary: Heavy Weight Mine
Secondary: Light Weight
Commodity
Primary: Copper
Secondary: Silver
Tertiary: Gold
Tertiary: Beryllium
Location
State: Arizona
County: Pima
District: Helvetia - Rosemont District
Land Status
Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Helvetia Copper Co.
Production
Year: 1902
Time Period: 1885-1902
Material type: ORE CU-AG
Description: Cp_Grade: ^5% Cu, 1.5 Oz Ag/Ton
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1889
Year Last Production: 1902
Discovery Year: 1887
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR, TABULAR
Structure
Type: R
Description: Homoclinal ; Reg.Trends: Tilting And Broad Open Folds In S. And Extensive Faulting In N.
Type: L
Description: Thrust And Normal Faulting - Fracture Zones.
Alterations
Alteration Type: L
Alteration Text: Garnetization, Silicification
Rocks
Name: Quartz Latite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Permian
Name: Quartz Latite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene
Name: Quartz Latite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Analytical Data: CHANNEL SAMPLE FROM PORTAL SHOWS .0004 PERCENT BEO (WARNER, 1959).
Materials
Ore: Chalcopyrite
Ore: Bornite
Ore: Covellite
Comments
Comment (Commodity): SCHRADER ALSO LISTS SECONDARY MALACHITE - BORNITE AND COVELLITE AFTER CHALCOPYRITE.
Comment (Geology): ORE GENERALLY IN LIME-SILICATE ZONES CONTROLLED BY FAULTS AND FRACTURES. SAME CONTACT EXTENDS TO THE BACKBONE, BLACKHAWK, AND WEDGE CLAIMS TO THE WEST, AND TO THE TIP TOP MINE. ; GEOL.DESC: AGE OF MINERALIZATION BELIEVED TO BE THAT OF THE QUARTZ LATITE INTRUSIVE OF DREWES - 1971. ; REG.COM: STRUCTURE IN DISTRICT IS THRUST FAULTING - HIGH ANGLE NORMAL FAULTING AND FOLDING.
Comment (Deposit): ORE IN SHEARED CONTACT BETWEEN LIMESTONE AND INTRUSIVE.
Comment (Workings): THREE LEVELS OF CUTS AND TUNNELS INTO STEEP SLOPE
Comment (Deposit): THE STRATIGRAPHIC UNITS USED ARE THOSE OF H. DREWES - 1971 USGS MAP I-613. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Development): CLOSED IN 1902 DUE TO LOW COPPER PRICES.
Comment (Deposit): Discovery Year: LATE 188?
References
Reference (Deposit): 1971 DIREXPL ANACONDA-POSSIBLE NEW PORPH. COPPER DEPOSIT.
Reference (Deposit): 1971 GEOLMAP H. DREWES U.S.G.S. MAP I-613.
Reference (Other Database): CIMRI
Reference (Production): KEITH, S.B., 1974, ABM BULLETIN 189, P.126.
Reference (Deposit): SCHRADER, F.C., 1915, USGS BULL 582.
Reference (Deposit): ARIZONA BUREAU OF MINES, 1971, FIELDNOTES, V. 1, NO 2.
Reference (Deposit): DREWES, H., 1971, USGS MAP I-613 (SAHUARITA QUAD).
Reference (Deposit): CREASEY, S.C., 1955, USGS BULL 1027F.
Reference (Deposit): JOHNSON, V.H., 1941, GEOLOGY OF THE HELVETIA MINING DISTRICT, PIMA COUNTY, ARIZONA: UNIV OF ARIZONA PH.D THESIS.
Reference (Deposit): 1909 RECON F. C. SCHRADER U.S.G.S. BULL. 582.
Arizona Gold
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.
