Marconi Mine group, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mountains, Pima Co., Arizona, USAi
|Regional Level Types|
|Marconi Mine group||- not defined -|
|Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District)||Mining District|
|Sierrita Mountains||Mountain Range|
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
31° 52' 50'' North , 111° 4' 10'' West
Latitude & Longitude (decimal):
Köppen climate type:
‡Ref.: Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geology Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 135 (Table 4).
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 12 (Table 1).
USGS Twin Buttes Quadrangle topo map.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10026757, MRDS ID #M000090; and, Dep. ID 10280549, MAS ID #0040190310.
A former small underground Zn-Pb-Cu-Ag-Au mine located in North-central sec. 12, T.18S., R. 12E. (Twin Buttes 15 minute topo map), 2 miles SW of Twin Buttes on private land. Produced 1948. Owned by Hilzinger. Operators included H.G. Lynch.
Mineralization is spotty, largely oxidized zinc, lead and minor copper minerals along strong fracture zones in Cretaceous arkose and conglomerate.
Workings include inclined shafts. Some 350 tons of ore were produced in 1948. This ore averaged about 6% Zn, 3% Pb, 2 oz. Ag/T and minor Cu & Au.
List of minerals for each chemical element
|USGS MRDS Record:||10026757|
Other Regions, Features and Areas containing this locality
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.