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Yuma Co., Arizona, USA
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Yuma County is in the far Southwestern corner of Arizona. This area is very hot and dominated by a persistent desert.

NOTE: Relatively recently the county was sub-divided into La Paz County and Yuma County, with La Paz County taking over roughly the Northern half of the old Yuma County. This division is sometimes overlooked in citing localities, particularly if older references are employed. The remaining Yuma County contains the significant Castle Dome District in the Castle Dome Mountains.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Actinolite
'Albite-Anorthite Series'
Andalusite
Anglesite
Ankerite
Aragonite
Aurorite
Autunite
Azurite
Baryte
'Bentonite'
Beryl
'Biotite'
Bixbyite
Boulangerite
Brochantite
Calcite
var: Ferroan Calcite
var: Manganoan Calcite
Carnotite
Cerussite
Chalcanthite
Chalcocite
Chalcophanite
Chalcopyrite
'Chert'
Chlorargyrite
'Chlorite Group'
Chrysocolla
'Clinoptilolite'
Colemanite
'Copper Stain'
Covellite
Cuprite
Cuprotungstite
Descloizite
Dioptase
Epidote
Fluorite
Freieslebenite
Galena
var: Argentiferous Galena
'Garnet'
Goethite
Gold
Groutite
Gypsum
var: Selenite
Hematite
var: Specularite
Hollandite
'Hornblende'
Hydrozincite
Jarosite
Kaolinite
'K Feldspar
var: Adularia'

Kyanite
'Limonite'
Magnetite
var: Lodestone
Malachite
Manganite
Massicot
'Mica Group'
Mimetite
var: Vanadian Mimetite
Minium
Montmorillonite
Muscovite
var: Sericite
Nsutite
'Obsidian'
Opal
var: Opal-AN
Orthoclase
'Petrified Wood'
Polybasite
'Psilomelane'
Pyrite
Pyrolusite
Pyromorphite
Pyrophyllite
Quartz
var: Chalcedony
Quartz
var: Fire Agate

var: Jasper
var: Milky Quartz
var: Sardonyx
Rhodochrosite
Rhodonite
Salammoniac
Samarskite-(Y)
Scheelite
Siderite
Silver
Smithsonite
Sphalerite
Stolzite
Talc
Todorokite
Torbernite
Uranophane
Vanadinite
var: Arsenatian Vanadinite
Vesuvianite
'Wad'
Weeksite
Willemite
Witherite
Wulfenite


112 entries listed. 79 valid minerals.

Localities in this Region

USA
USA

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Wilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 42.

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.

Schnabel, Lorraine, and Welty, J.W., (1986) Bibliography for metallic mineral districts in La Paz, Mohave, and Yuma Counties, Arizona: Arizona Bureau of Geology and Mineral Technology Circular 25, 45 p.

Welty, J.W. (1988) Additions to bibliographies for metallic mineral districts in Cochise, Graham, Greenlee, La Paz, Mohave, Pima, Santa Cruz, and Yuma Counties, Arizona: Arizona Geological Survey Open-File Report 88-22, 32 p.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 414.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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.
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