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Ajo, Little Ajo Mts, Ajo District, Pima Co., Arizona, USA

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‡Ref.: Galbraith, F.W. & Brennan (1959), Minerals of Arizona: 89.





 Map Reference: 32°22'20"N , 112°51'35"W

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.


Mineral list contains entries from the region specified including sub-localities

Group 1 - Elements
  		• Copper1.AA.05
    Cu
  		• Gold1.AA.05
    Au
  		• Silver1.AA.05
    Ag
  		• Sulphur1.CC.05
    S
     
    8
    Group 2 - Sulphides and Sulfosalts
  		• Bornite2.BA.15
    Cu
     
    5
    		FeS
     
    4
  		• Chalcocite2.BA.05
    Cu
     
    2
    		S
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Covellite2.CA.05a
    CuS
  		• Enargite2.KA.05
    Cu
     
    3
    		AsS
     
    4
  		• Galena2.CD.10
    PbS
  		• Molybdenite2.EA.30
    MoS
     
    2
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
  		• Tennantite2.GB.05
    (Cu,Ag,Fe,Zn)
     
    12
    		As
     
    4
    		S
     
    13
  		• Tetrahedrite2.GB.05
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
    Group 3 - Halides
  		• Atacamite3.DA.10a
    Cu
     
    2
    		[(OH)
     
    3
    		|Cl]
  		• Connellite3.DA.25
    Cu
     
    19
    		[(OH)
     
    32
    		|SO
     
    4
    		|Cl
     
    4
    		] · 3H
     
    2
    		O
  		• Halite3.AA.20
    NaCl
    Group 4 - Oxides and Hydroxides
  		• Anatase4.DD.05
    TiO
     
    2
  		• Brookite4.DD.10
    TiO
     
    2
  		• Cuprite4.AA.10
    Cu
     
    2
    		O
      var: Chalcotrichite4.AA.10
    Cu
     
    2
    		O
  		• Diaspore4.FD.10
    AlO(OH)
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
      var: Specularite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Ilmenite4.CB.05
    Fe
    2+
     
    		TiO
     
    3
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
  		• Pyrolusite4.DB.05
    MnO
     
    2
  		• Quartz4.DA.05
    SiO
     
    2
  		• Rutile4.DB.05
    TiO
     
    2
  		• Stibiconite4.DH.20
    Sb
    3+
     
    		Sb
    5+
    2
    		O
     
    6
    		(OH)
  		• Tenorite4.AB.10
    CuO
    Group 5 - Nitrates and Carbonates
  		• Ankerite5.AB.10
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
  		• Aurichalcite5.BA.15
    (Zn,Cu)
     
    5
    		[(OH)
     
    3
    		|CO
     
    3
    		]
     
    2
  		• Azurite5.BA.05
    Cu
     
    3
    		[OH|CO
     
    3
    		]
     
    2
  		• Calcite5.AB.05
    CaCO
     
    3
  		• Dolomite5.AB.10
    CaMg(CO
     
    3
    		)
     
    2
  		• Malachite5.BA.10
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
  		• Siderite5.AB.05
    FeCO
     
    3
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Alunite7.BC.10
    KAl
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
  		• Anhydrite7.AD.30
    CaSO
     
    4
  		• Baryte7.AD.35
    BaSO
     
    4
  		• Bieberite7.CB.35
    CoSO
     
    4
    		·7H
     
    2
    		O
  		• Brochantite7.BB.25
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
  		• Devilline7.DD.30
    CaCu
     
    4
    		(SO
     
    4
    		)
     
    2
    		(OH)
     
    6
    		·3H
     
    2
    		O
  		• Epsomite7.CB.40
    MgSO
     
    4
    		·7H
     
    2
    		O
  		• Gypsum7.CD.40
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
  		• Jarosite7.BC.10
    KFe
    3+
     
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
  		• Melanterite7.CB.35
    FeSO
     
    4
    		·7H
     
    2
    		O
  		• Meta-alunogen7.CB.45
    Al
     
    2
    		(SO
     
    4
    		)
     
    3
    		·12H
     
    2
    		O
  		• Posnjakite7.DD.10
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		] · H
     
    2
    		O
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Apatite-(CaF)8.BN.05
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
  		• Conichalcite8.BH.35
    CaCu[OH|AsO
     
    4
    		]
  		• Mottramite8.BH.40
    Pb(Cu,Zn)[OH|VO
     
    4
    		]
  		• Olivenite8.BB.30
    Cu
     
    2
    		[OH|AsO
     
    4
    		]
  		• Planerite8.DD.15
    Al
     
    6
    		[(OH)
     
    4
    		|HPO
     
    4
    		|PO
     
    4
    		]
     
    2
    		 · 4 H
     
    2
    		O
  		• Pseudomalachite8.BD.05
    Cu
     
    5
    		[(OH)
     
    2
    		|PO
     
    4
    		]
     
    2
  		• Torbernite8.EB.05
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
  		• Turquoise8.DD.15
    Cu(Al,Fe
    3+
     
    		)
     
    6
    		[(OH)
     
    4
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 4H
     
    2
    		O
    Group 9 - Silicates
  		• Ajoite (TL)9.EA.70
    (K,Na)Cu
     
    7
    		[(OH)
     
    6
    		|AlSi
     
    9
    		O
     
    24
    		] · 3H
     
    2
    		O
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Allophane9.ED.20
    (Al
     
    2
    		O
     
    3
    		)(SiO
     
    2
    		)
     
    1.3-2
    		·2.5-3H
     
    2
    		O
  		• Augite9.DA.15
    (Ca,Na)(Mg,Fe
    2+
     
    		,Al,Fe
    3+
     
    		,Ti)[(Si,Al)
     
    2
    		O
     
    6
    		]
  		• Beidellite9.EC.40
    (Na,Ca
     
    0.5
    		)
     
    0.3
    		Al
     
    2
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
  		• Biotite9..
  		• Chamosite9.EC.55
    (Fe
    2+
     
    		,Mg)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Chrysocolla9.ED.20
    (Cu,Al)
     
    2
    		H
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·nH
     
    2
    		O
  		• Clinochlore9.EC.55
    (Mg,Fe
    2+
     
    		)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
      var: Diabantite9.EC.55
    (Mg,Fe,Al)
     
    6
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    8
  		• Clinozoisite ?9.BG.05
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Enstatite9.DA.05
    Mg
     
    2
    		[SiO
     
    3
    		]
     
    2
  		• Epidote9.BG.05
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Ferrierite-Na9.GD.50
    (Na
     
    2
    		,K
     
    2
    		,Mg,Ca)
     
    3-5
    		Mg[Al
     
    5-7
    		Si
     
    27.5-31
    		O
     
    72
    		]·18H
     
    2
    		O
  		• Forsterite9.AC.05
    Mg
     
    2
    		[SiO
     
    4
    		]
  		• Kaolinite9.ED.05
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
  		• Laumontite9.GB.10
    CaAl
     
    2
    		Si
     
    4
    		O
     
    12
    		·4H
     
    2
    		O
  		• Microcline9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Neotocite9.ED.20
    (Mn,Fe,Mg)SiO
     
    3
    		·H
     
    2
    		O
  		• Nontronite9.EC.40
    Na
     
    0.3
    		Fe
     
    2
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
  		• Orthoclase9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Palygorskite9.EE.20
    (Mg,Al)
     
    5
    		(Si,Al)
     
    8
    		O
     
    20
    		(OH)
     
    2
    		·8H
     
    2
    		O
  		• Papagoite (TL)9.CE.05
    CaCu[H
     
    3
    		AlSi
     
    2
    		O
     
    9
    		]
  		• Phlogopite9.EC.20
    KMg
     
    3
    		[(OH,F)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Plancheite9.DB.35
    Cu
     
    8
    		[(OH)
     
    4
    		|Si
     
    8
    		O
     
    22
    		] · H
     
    2
    		O
  		• Shattuckite9.DB.40
    Cu
     
    5
    		[(OH)
     
    2
    		|(SiO
     
    3
    		)
     
    4
    		]
  		• Talc9.EC.05
    Mg
     
    3
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
  		• Titanite9.AG.15
    CaTi[O|SiO
     
    4
    		]
  		• Zircon9.AD.30
    Zr[SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Albite-Anorthite Series'-
  		• 'Allanite'-
  		• Bisbeeite-
    (Cu,Mg)SiO
     
    3
    		·nH
     
    2
    		O
  		• 'Chabazite'-
  		• 'Chlorite Group'-
  		• 'Ferrierite'-
    (Na,K)
     
    2
    		MgAl
     
    3
    		Si
     
    15
    		O
     
    36
    		(OH)·9H
     
    2
    		O
  		• 'Heulandite'-
  		• 'Hornblende'-
  		• Hypersthene-
    (Fe,Mg)SiO
     
    3
  		• Limonite-
    FeO(OH)·nH
     
    2
    		O
  		• 'Monazite'-
  		• 'Psilomelane'-
  		• 'Sericite'-
  		• 'Stilbite'-


    104 entries listed. 88 valid minerals.

    Localities in this Region:
    USA
     
    • Arizona
      • Pima Co.
        • Ajo District
          • Little Ajo Mts
            • Ajo

    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!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 12th Nov 2009 01:47:27