Latitude: 33°45'49"N
Longitude: 113°13'32"W
‡Ref.: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 338; Farnham, L.L. & L.A. Stewart (1958), Manganese deposits of western AZ, US Bur. of Mines Inf Circ. 7843; Sandell, W.G. & D.T. Holmes (1948), Concentration of oxide manganese ores from the Aguila district, AZ, US Bur. of Mines Rept. Inv. 4330; US Bur. Mines file data - cluster No. 480 - Black Nugget Mine; Jones, Jr., E.L. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 140; Wilson, E.D. & G.M. Butler (1930), Manganese ore deposits of AZ, AZ Bur. Mines Bull. 127: 67; MRDS files #10102524 & 10186605.
A former surface and underground Mn mine discovered in 1939 by M.S. Ponton and J.B. Webb.
33.76333; -113.22500.
Orebody offset into 2 or more segments by crossfaulting.
Mineral List
4 entries listed. 3 valid minerals.
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