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Lone Jack Placer Mine, Lost Basin District, Lost Basin Mts (Lost Basin Range), Mohave Co., Arizona, USA

Latitude: 35°53'49"N
Longitude: 114°6'5"W
‡Ref.: Theodore, T.G., et al (1987), USGS PP 1361: Plate 1, 165 (Table 11); USGS Kingman map; Arizona State Land Dept. Mineral map; USGS 15 minute Garnet Mountain topo. map; AZ Dept. Min. Resources (ADMR) Lone Jack 1 and 2 file; MRDS file #10259427.

A gold placer deposit area located in the SW ¼ sec. 15, T.29N., R.17W.

Yellow-gray, distinctly foliated to laminated quartzofeldspathic, medium-grained gneiss is the dominant clast type. Subangular to subrounded boulders as much as 0.6 meters diameter are common. Pyritic vein quartz is present but uncommon, and some pyritic and feldspathic altered wall rock of quartzofeldspathic gneiss is present. Gold and limonite pseudomorphs after pyrite were found northward. Reportedly gold fragments greater than 1 mm were very common.

Worked heavily in the late 1950's.

Mineral List

Gold
Limonite
Pyrite


3 entries listed. 2 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2011. Jobs in Arizona, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 8th Jul 2011 14:30:35
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