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Angelus Mine, Santa Maria District (Planet District; Swansea District; Bill Williams District), Buckskin Mts, La Paz Co., Arizona, USA

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Ref.: Bancroft, H. (1911), Reconnaissance of the ore deposits in northern Yuma County, Arizona, USGS Bull. 451: 51.

Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 128.

Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 172 (Table 4).

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10235071, MAS ID #0040120026.

A former underground Au-Ag-Fe mine located in the NE¼SW¼SE¼ sec. 1, T10N, R17W, on land of unknown status. Owned by Craig & Baldwin (1930).

Mineralization is finely divided particles of gold in irregular streaks and small, discontinuous pockets of brecciated to pulverized sugary quartz with abundant iron oxide and sericite in a brecciated zone in siliceous Paleozoic or Precambrian schistose quartzite.

Workings include shaft and tunnel operations. This mine was known as early as the early 1900's but was worked mainly in the 1930's. Total production could be as much as 100 tons of ore averaging about 1 oz. Au/T and 0.2 oz. Ag/T.

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