Unknown No. 2 claim, Warren District, Mule Mts, Cochise Co., Arizona, USA
‡Ref.: Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 20-21.
Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, Arizona: 90 (Table 4).
MRDS database Dep. ID file #10104072, MRDS ID #M241103; and, Dep. ID #10258246, MAS ID #0040030344.
A former small surface Mn mine located in South-central sec. 16, T.23S., R.24E, approximately 1 mile W of Lowell. Owned at times, or in part, by the Calumet & Arizona Mining Co. and the Phelps Dodge Corp.
Mineralization is disconnected bodies of hard manganese oxides and manganiferous calcite along fissure zones cutting Pennsylvanian-Permian Naco Group limestone.
Workings are surface openings. Three open cuts and a short adit. The largest open cut was about 150 feet long, 5 to 8 feet wide and 10 feet deep. Drifts run 20 feet south and 16 feet north on the second open cut, which was 15 feet deep and 50 feet long. 2 to 4 feet of manganese mineralization is exposed in the faces of the drifts. A few hundred tons of manganese oxide were produced in 1917-1918.
var: Manganoan Calcite
1 entry listed.
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New Locality Added: Lägern (Otelfingen; Boppelsen), Limmattal, Zürich, SwitzerlandFrom Richard Muster, 19th Jun 2013 20:38:43