‡Ref.: 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: 144 (Table 4).
Keith, S.B., Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10162311, MAS ID #0040120315; and, Dep. ID #10259281, MAS ID #0040120024.
A former underground Cu-Au-Ag-Fe-Ba mine located in the SE¼ sec. 12, T7N, R13W, on land of unknown status. Owned at times, or in part, by Wendondale Gold Mining Co.; Vindicator Mining Co.; Black Giant Mines Co.; Jones; Cooper; and the Marvel Mining Co. Owned and operated by the Black Giant Mines Co. of Arizona; and, by the Marvel Mining Co. (1954).
Mineralization is spotty, high-grade copper ores with gold, associated with hematite, quartz, calcite and barite in NW-striking fissure veins along a major fault zone, cutting a Precambrian granite-gneiss complex. Ore consists of copper oxides and sulfides in high-grade, narrow streaks and some disseminated sulfides in a cross-cutting diorite dike.
Workings include a shaft & tunnel operations worked sporadically from early 1900's to 1954. Produced over 500 tons of ore averaging about 14.6% Cu, 0.2 oz. Au/T, and 0.5 oz. Ag/T.
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Map Reference: 33°57'34"N , 113°33'40"W
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Mineral list contains entries from the region specified including sub-localitiesMineral List:6 entries listed. 6 valid minerals.
Localities in this Region: | USA | |
- Little Giant Mine groups (American Flag group; Cash Entry group; Vindicator group)
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