The Helvetia-Rosemont District is a copper mine located in Pima county, Arizona.
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
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.
Helvetia-Rosemont District MRDS details
Site Name
Primary: Helvetia-Rosemont District
Secondary: Helvetia Deposit
Secondary: Peach-Elgin
Secondary: Broadtop Butte
Secondary: Rosemont
Secondary: Copper World
Commodity
Primary: Copper
Secondary: Zinc
Secondary: Silver
Tertiary: Tungsten
Tertiary: Molybdenum
Location
State: Arizona
County: Pima
District: HELVETIA-ROSEMONT DISTRICT
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: AMERICAN SMELTING AND REFINING COMPANY (ASARCO)
Info Year: 1992
Production
Not available
Deposit
Record Type: District
Operation Category: Past Producer
Deposit Type: SKARN, PYROMETASOMATIC
Operation Type: Unknown
Year First Production: 1870
Discovery Year: 1861
Years of Production:
Organization:
Significant:
Physiography
Not available
Mineral Deposit Model
Model Name: Porphyry Cu, skarn-related
Orebody
Not available
Structure
Type: L
Description: BACKBONE FAULT-- A COMPLEX ZONE CONSISTING OF THRUST FAULTS, HIGH-ANGLE NORMAL AND REVERSE FAULTS, TEAR FAULTS; FOLDING
Alterations
Alteration Type: L
Alteration: SKARN
Alteration Text: CONTACT PYROMETASOMATIC (SKARNIFICATION), SILICIFICATION, ARGILLIZATION, PYRITIZATION
Alteration Type: L
Alteration: PYRITIZATION
Alteration Type: L
Alteration: ARGILLIC
Alteration Type: L
Alteration: SILICIFICATION
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Not available
References
Reference (Deposit): LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S., USGS MAP, MR-25.
Reference (Deposit): 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.
Reference (Deposit): ANZALONE, S.A., AND BROWN, R.L., 1992, GEOLOGYOF THE HELVETIA COPPER DEPOSIT--ARIZONA: SOCIETY FOR MINING, METALLURGY, AND EXPLORATION, INC. PREPRINT NO. 92-61, 5 P.
Reference (Deposit): LEMMON, D.M., UNPUBLISHED DATA.
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.
