The Steppe Mine is a lead, copper, silver, and gold mine located in Pima county, Arizona at an elevation of 2,625 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: 2,625 Feet (800 Meters)
Commodity: Lead, Copper, Silver, Gold
Lat, Long: 32.01611, -111.91250
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.
Steppe Mine MRDS details
Site Name
Primary: Steppe Mine
Secondary: Little Mary Mine
Commodity
Primary: Lead
Primary: Copper
Primary: Silver
Primary: Gold
Secondary: Zinc
Tertiary: Barium-Barite
Tertiary: Molybdenum
Tertiary: Rhenium
Location
State: Arizona
County: Pima
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1970
Time Period: 1917-1970
Material type: ORE
Description: Cp_Grade: ^0.2 Oz/T Au, 15 Oz/T Ag, 54% Pb, 4% Cu Little Zn
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1917
Year Last Production: 1970
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: LENSING
Structure
Type: L
Description: Ne Vertical Fault Displacing Little Mary And Chicago Veins; Nw Fau Lt (Dip 40 Ne) Displacing Little Mary Vein
Alterations
Alteration Type: L
Alteration Text: Oxidation And Leaching Of Wall Rock
Rocks
Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Tetrahedrite
Ore: Pyrite
Ore: Bornite
Ore: Galena
Ore: Chalcocite
Gangue: Molybdenite
Gangue: Barite
Gangue: Quartz
Gangue: Dolomite
Comments
Comment (Commodity): RHENIUM FOUND SPECTROGRAPHICALLY IN BORNITE.
Comment (Development): OPERATORS INCLUDED COMO-PIMA MINING CO, BEIDS MINING CO, G.A. WITHERS
Comment (Workings): SHAFT AND TUNNEL WORKINGS; AS OF 1925, A 50 TON FLOATATION MILL.
Comment (Geology): FLOWS ARE INTRUDED BY DIKES, PICACHO ANDESITE, AND COON CANYON VOLCANICS.
Comment (Deposit): THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050622 WITH RECORD M030516 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS. THIS RECORD CONTAINS DATA FROM DUPLICATE RECORD D002878 OF J.W. HASLER WHICH HAS BEEN DELETED FROM MAIN MRDS.
Comment (Deposit): 2 VEINS ABOUT 500 FT APART. QUARTZ GANGUE WITH BARITE AND DOLOMITE SHOOTS AND STRINGERS.
References
Reference (Production): KEITH, 1974.
Reference (Other Database): CIMRI
Reference (Deposit): ARIZ. BUREAU OF MINES BULL. 137.
Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.
Reference (Deposit): ABGMT CLIPPINGS FILE DATA.
Reference (Deposit): WILLIAMS, 1962, PHD THESIS UNIV OF ARIZONA, 145 P.
Reference (Deposit): KEITH, 1974, ABM BULL 189, P. 111.
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.
