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Mammoth District, Pinal Co., Arizona, USA

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This district is located in T8S, R16E, and centers around the Mammoth-St. Anthony mine (Tiger), about 3 miles SW of the town of Mammoth. It is sometimes considered part of the Old Hat District. This is principally a gold mining district; however, much lead was mined. During WWII the Mammoth-St. Anthony was worked for vanadium and molybdenum as well. The total production was about $3 million, mostly in gold.

This area is at about 3,200 feet of altitude. The host rock is a coarse granite (the Oracle Granite), presumably of Pre-Cambrian age; Mesozoic or Tertiary breccia & conglomerate, largely of andesitic to dacitic material; rhyolite, in part at least intrusive, probably of Tertiary age; and Pliocene Gila Conglomerate. All of these are rather intensely faulted.

Veins in the District occur within shear zones which strike WNW-ward & dip steeply SW-ward. Gangue consists of brecciated country rock, cemented & replaced by quartz and calcite together with some barite and fluorite.



References:
Wilson, E.D., et al (1934), Arizona Bureau of Mines Bull. 137: 170-171.




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

Group 1 - Elements
  		• Gold1.AA.05
    Au
  		• Silver1.AA.05
    Ag
  		• Sulphur1.CC.05
    S
     
    8
    Group 2 - Sulphides and Sulfosalts
  		• Acanthite2.BA.35
    Ag
     
    2
    		S
  		• Bornite2.BA.15
    Cu
     
    5
    		FeS
     
    4
  		• Chalcocite2.BA.05
    Cu
     
    2
    		S
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Covellite2.CA.05a
    CuS
  		• Djurleite2.BA.05
    Cu
     
    31
    		S
     
    16
  		• Galena2.CD.10
    PbS
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
  		• Tetrahedrite2.GB.05
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
  		• Wurtzite2.CB.45
    (Zn,Fe)S
    Group 3 - Halides
  		• Atacamite3.DA.10a
    Cu
     
    2
    		[(OH)
     
    3
    		|Cl]
  		• Bideauxite (TL)3.DB.25
    Pb
     
    2
    		Ag[(F,OH)
     
    2
    		|Cl
     
    3
    		]
  		• Boleite3.DB.15
    KPb
     
    26
    		Ag
     
    9
    		Cu
     
    24
    		(OH)
     
    48
    		Cl
     
    62
  		• Chlorargyrite3.AA.15
    AgCl
      var: Bromian Chlorargyrite3.AA.15
    Ag(Cl,Br)
  		• Connellite3.DA.25
    Cu
     
    19
    		[(OH)
     
    32
    		|SO
     
    4
    		|Cl
     
    4
    		] · 3H
     
    2
    		O
  		• Diaboleite3.DB.05
    Pb
     
    2
    		CuCl
     
    2
    		(OH)
     
    4
  		• Fluorite3.AB.25
    CaF
     
    2
  		• Iodargyrite3.AA.10
    AgI
  		• Matlockite3.DC.25
    PbFCl
  		• Murdochite (TL)3.DB.45
    PbCu
     
    6
    		O
     
    8-x
    		(Cl,Br)
     
    2x
    		 x<=0.5
  		• Paralaurionite3.DC.05
    PbClOH
  		• Paratacamite3.DA.10c
    Cu
     
    3
    		(Cu,Zn)[(OH)
     
    3
    		|Cl]
     
    2
  		• Pinalite (TL)3.DC.55
    Pb
     
    3
    		WO
     
    5
    		Cl
     
    2
  		• Pseudoboleite3.DB.10
    Pb
     
    31
    		Cu
     
    24
    		Cl
     
    62
    		(OH)
     
    48
  		• Yedlinite (TL)3.DB.50
    Pb
     
    6
    		(Cl,OH)
     
    6
    		Cr
    3+
     
    		(OH,O)
     
    8
    Group 4 - Oxides and Hydroxides
  		• Cuprite4.AA.10
    Cu
     
    2
    		O
      var: Chalcotrichite4.AA.10
    Cu
     
    2
    		O
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
      var: Specularite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Hollandite4.DK.05
    Ba(Mn
    4+
     
    		,Mn
    2+
     
    		)
     
    8
    		O
     
    16
  		• Lepidocrocite ?4.FE.15
    γ-Fe
    3+
     
    		O(OH)
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Minium4.BD.05
    Pb
     
    3
    		O
     
    4
  		• Pyrolusite4.DB.05
    MnO
     
    2
  		• Quartz4.DA.05
    SiO
     
    2
      var: Amethyst4.DA.05
    SiO
     
    2
  		• Ramsdellite4.DB.15a
    Mn
    4+
     
    		O
     
    2
  		• Tenorite4.AB.10
    CuO
    Group 5 - Nitrates and Carbonates
  		• 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
  		• Cerussite5.AB.15
    PbCO
     
    3
  		• Hydrocerussite5.BE.10
    Pb
     
    3
    		(CO
     
    3
    		)
     
    2
    		(OH)
     
    2
  		• Leadhillite5.BF.40
    Pb
     
    4
    		SO
     
    4
    		(CO
     
    3
    		)
     
    2
    		(OH)
     
    2
  		• Malachite5.BA.10
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
  		• Phosgenite5.BE.20
    Pb
     
    2
    		[Cl
     
    2
    		|CO
     
    3
    		]
  		• Plumbonacrite5.BE.15
    Pb
     
    5
    		O(OH)
     
    2
    		(CO
     
    3
    		)
     
    3
  		• Rosasite5.BA.10
    (Cu,Zn)
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
  		• Smithsonite5.AB.05
    ZnCO
     
    3
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Anglesite7.AD.35
    PbSO
     
    4
  		• Baryte7.AD.35
    BaSO
     
    4
  		• Beaverite7.BC.10
    Pb(Fe
    3+
     
    		,Cu,Al)
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
  		• Brochantite7.BB.25
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
  		• Caledonite7.BC.50
    Cu
     
    2
    		Pb
     
    5
    		[(OH)
     
    6
    		|CO
     
    3
    		|(SO
     
    4
    		)
     
    3
    		]
  		• Chalcanthite7.CB.20
    CuSO
     
    4
    		·5H
     
    2
    		O
  		• Crocoite7.FA.20
    Pb(CrO
     
    4
    		)
  		• Devilline7.DD.30
    CaCu
     
    4
    		(SO
     
    4
    		)
     
    2
    		(OH)
     
    6
    		·3H
     
    2
    		O
  		• Fornacite7.FC.10
    Pb
     
    2
    		Cu[OH|AsO
     
    4
    		|CrO
     
    4
    		]
  		• Gypsum7.CD.40
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
  		• Iranite7.FC.15
    Pb
     
    10
    		Cu[(F,OH)
     
    2
    		|(CrO
     
    4
    		)
     
    6
    		|(SiO
     
    4
    		)
     
    2
    		]
  		• Linarite7.BC.65
    PbCu[(OH)
     
    2
    		|SO
     
    4
    		]
  		• Mammothite (TL)7.BC.60
    Pb
     
    6
    		Cu
     
    4
    		AlSb[(OH)
     
    9
    		|Cl
     
    2
    		|SO
     
    4
    		]
     
    2
  		• Munakataite7.BC.65
    Pb
     
    2
    		Cu
     
    2
    		(Se
    4+
     
    		O
     
    3
    		)(SO
     
    4
    		)(OH)
     
    4
  		• Orthoserpierite7.DD.30
    Ca(Cu,Zn)
     
    4
    		(SO
     
    4
    		)
     
    2
    		(OH)
     
    6
    		·3H
     
    2
    		O
  		• Scheelite7.GA.05
    Ca[WO
     
    4
    		]
  		• Stolzite7.GA.05
    Pb[WO
     
    4
    		]
  		• Wherryite (TL)7.BC.55
    Pb
     
    7
    		Cu
     
    2
    		(SO
     
    4
    		)
     
    4
    		(SiO
     
    4
    		)
     
    2
    		(OH)
     
    2
  		• Wulfenite7.GA.05
    Pb[MoO
     
    4
    		]
      var: Tungstenoan Wulfenite7.GA.05
    Pb[MoO
     
    4
    		]
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Descloizite8.BH.40
    Pb(Zn,Cu)[OH|VO
     
    4
    		]
      var: Cuprian Descloizite8.BH.40
    Pb(Zn,Cu)VO
     
    4
    		OH
  		• Mimetite8.BN.05
    Pb
     
    5
    		[Cl|(AsO
     
    4
    		)
     
    3
    		]
  		• Mixite8.DL.15
    BiCu
     
    6
    		[(OH)
     
    6
    		|(AsO
     
    4
    		)
     
    3
    		] · 3H
     
    2
    		O
  		• Mottramite8.BH.40
    Pb(Cu,Zn)[OH|VO
     
    4
    		]
  		• Phosphohedyphane8.BN.05
    Pb
     
    3
    		Ca
     
    2
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
  		• Pyromorphite8.BN.05
    Pb
     
    5
    		[Cl|(PO
     
    4
    		)
     
    3
    		]
  		• Tsumebite8.BG.05
    Pb
     
    2
    		Cu[OH|SO
     
    4
    		|PO
     
    4
    		]
  		• Vanadinite8.BN.05
    Pb
     
    5
    		[Cl|(VO
     
    4
    		)
     
    3
    		]
    Group 9 - Silicates
  		• 'Adularia'9.FA.30
    KAlSi
     
    3
    		O
     
    8
  		• Alamosite9.DO.20
    Pb
     
    12
    		[Si
     
    12
    		O
     
    36
    		]
  		• Allophane9.ED.20
    (Al
     
    2
    		O
     
    3
    		)(SiO
     
    2
    		)
     
    1.3-2
    		·2.5-3H
     
    2
    		O
  		• Amesite9.ED.15
    Mg
     
    2
    		Al[(OH)
     
    4
    		|AlSiO
     
    5
    		]
  		• Antigorite9.ED.15
    (Mg,Fe
    2+
     
    		)
     
    3
    		[(OH)
     
    4
    		|Si
     
    2
    		O
     
    5
    		]
  		• Biotite9..
  		• Celadonite9.EC.15
    K(Mg,Fe
    2+
     
    		)(Fe
    3+
     
    		,Al)[(OH)
     
    2
    		|Si
     
    4
    		O
     
    10
    		]
  		• Chrysocolla9.ED.20
    (Cu,Al)
     
    2
    		H
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·nH
     
    2
    		O
  		• Creaseyite (TL)9.HH.15
    Cu
     
    2
    		Pb
     
    2
    		(Fe,Al)
     
    2
    		Si
     
    5
    		O
     
    17
    		·6H
     
    2
    		O
  		• Dioptase9.CJ.30
    Cu
     
    6
    		(Si
     
    6
    		O
     
    18
    		)·6H
     
    2
    		O
  		• Epidote9.BG.05
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Fraipontite9.ED.15
    (Zn,Al)
     
    3
    		[(OH)
     
    4
    		|(Si,Al)
     
    2
    		O
     
    5
    		]
  		• Hemimorphite9.BD.10
    Zn
     
    4
    		[(OH)
     
    2
    		|Si
     
    2
    		O
     
    7
    		] · H
     
    2
    		O
  		• Hisingerite9.ED.10
    Fe
    3+
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·2H
     
    2
    		O
  		• Macquartite (TL)9.HH.05
    Pb
     
    3
    		Cu(CrO
     
    4
    		)(SiO
     
    3
    		)(OH)
     
    4
    		·2H
     
    2
    		O
  		• Melanotekite9.BE.80
    Pb
     
    2
    		Fe
    3+
    2
    		[O
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
  		• Microcline9.FA.30
    K[AlSi
     
    3
    		O
     
    8
    		]
  		• Muscovite9.EC.15
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
  		• Palygorskite9.EE.20
    (Mg,Al)
     
    5
    		(Si,Al)
     
    8
    		O
     
    20
    		(OH)
     
    2
    		·8H
     
    2
    		O
  		• Plancheite9.DB.35
    Cu
     
    8
    		[(OH)
     
    4
    		|Si
     
    8
    		O
     
    22
    		] · H
     
    2
    		O
  		• Plumbotsumite9.HH.20
    Pb
     
    5
    		Si
     
    4
    		O
     
    8
    		(OH)
     
    10
  		• Queitite9.BF.20
    Pb
     
    4
    		Zn
     
    2
    		[SO
     
    4
    		|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
  		• Schorl9.CK.05
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
  		• Shattuckite9.DB.40
    Cu
     
    5
    		[(OH)
     
    2
    		|(SiO
     
    3
    		)
     
    4
    		]
  		• Surite9.EC.75
    Pb(Pb,Ca)(CO
     
    3
    		)
     
    2
    		(Al,Fe,Mg)
     
    2
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
  		• Willemite9.AA.05
    Zn
     
    2
    		[SiO
     
    4
    		]
    Unclassified Minerals
  		• 'Albite-Anorthite Series'-
  		• 'Apatite'-
  		• 'Chabazite'-
  		• 'Chlorite Group'-
  		• 'Chromian Leadhillite'-
  		• 'Diatomaceous Earth'-
  		• 'Heulandite'-
  		• Limonite-
    FeO(OH)·nH
     
    2
    		O
  		• 'Phillipsite'-
  		• 'Psilomelane'-
  		• 'Sericite'-
  		• 'Serpentine Group'-
    D
     
    2
    		[Si
     
    2
    		O
     
    5
    		](OH)4 + or - nH
     
    2
    		O
  		• 'Stilbite'-
  		• 'Tourmaline'-
  		• 'Wad'-
  		• Wolframite-
    (Fe
    2+
     
    		)WO
     
    4
     
     
    		to (Mn
    2+
     
    		)WO
     
    4


    126 entries listed. 108 valid minerals.

    Localities in this Region:
    USA
     
    • Arizona
      • Pinal Co.
        • Mammoth District
          • Black Hills
            • Mammoth
              • Signal Peak area
            • Signal Peak area
            • Tarr Wash
            • Tucson Wash
            • Aravaipa Creek area
            • Tucson Wash
          • Mammoth area
          • North Mammoth

    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: 10th Nov 2009 11:53:44