‡Ref.: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 103, 135, 158, 193-194, 201, 208, 228, 247, 272, 282, 290, 299, 300, 327, 369, 413, 419, 420; Williams, S.A. (1968), Wickenburgite, a new mineral from Arizona, Am.Min.: 53: 1433-1438; Williams, S.A. & J.W. Anthony (1970), Hemihedrite, a new mineral from Arizona, Am.Min.: 55: 1088-1102; Williams, S.A., et al (1970), A study of Phoenichchroite-Its structure and properties, Am.Min.: 55: 784-792; Allen, G.B. (1985), Economic Geology of the Big Horn Mountains of west-central Arizona: AZ Bur. of Geol. & Min. Tech. open-file report 85-17; Peacor, et al (1988), Maricopaite, a new hydrated Ca-Pb, zeolite-like silicate from Arizona, Can.Min.: 26: 309-313; US Bur. Mines card file; USGS 15 minute Big Horn Mountains topo. map; AZ Dept. Min. Resources (ADMR) Moon Anchor Mine file; AZ Dept. Min. Resources (ADMR) "U" file; Bur. Land Mgmt. AZ Mineral Claim file #57506; MRDS files #10027550 & 10161862.
A former surface and underground Au-Pb-Ag mine located near Tonopah.
Mineralization is a vein deposit with pod-like ore bodies. Host rock is unnamed gneiss & schist.
Field observations: There are two areas of workings. The lower workings are comprised of a shallow vertical shaft (estimated 30 feet) with several adits and holes hollowed out of the banks of the wash. The second area is on a nearby hill and has a deep vertical shaft, substantial shaft-sinking waste rock dumps and an outcrop of a mineralized vein. Nearby this latter area, until recently, were a complex of apparent water tanks, now demolished. Apparently the entire complex is considered the "Moon Anchor Mine."
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Map Reference: 33°38'32"N , 113°0'48"W
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Mineral List:20 entries listed. 20 valid minerals. 1 type locality (valid mineral).
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