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Pima Co., Arizona, USA

StandardDetailedBy ChemistryMineral Photos (286)Site Photos (34)Search GoogleMineral Report for Region

‡Ref.: Schnabel, Lorraine, Welty, J.W., Trapp, R.A., and Reynolds, S.J. (1986) Bibliography for metallic mineral districts in Pima and Santa Cruz Counties, Arizona: Arizona Bureau of Geology and Mineral Technology Circular 26, 44 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.: 349.




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


Mineral List:
  		•  Actinolite
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
    Description: Abundant in contact rocks.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 101; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 92.]
  		•  Ajoite
    (K,Na)Cu
     
    7
    		[(OH)
     
    6
    		|AlSi
     
    9
    		O
     
    24
    		] · 3H
     
    2
    		O
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 193; Sun, M.S. (1961), Differential thermal analysis of shattuckite, Am.Min.: 46: 67-77.]
  		•  'Albite-Anorthite Series'
    Description: Occurs in arkose at the contact with the Leatherwood Quartz Diorite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 179.]
  		•  Almandine
    Fe
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Description: In the front range and crestal portions of the main range in gneiss & granite complexes & in pegmatite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 106; Pilkington, H.D. (1961), A mineralogic investigation of some garnets from the Catalina Mountains, Pima Co., AZ, AZ Geol. Soc. Digest: 4: 117-122.]
  		•  Alunite
    KAl
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    Colour: Yellow
    Description: Innumerable narrow veins cutting concentrator volcanics; yellow coatings.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 107; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141; Hutton, C.O. & A.C. Vlisidis (1960), Papagoite, a new copper-bearing mineral from Ajo, AZ, Am.Min.: 45: 599-611.]
  		•  Anatase
    TiO
     
    2
    Description: In altered rock with papagoite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 109; Hutton, C.O. & A.C. Vlisidis (1960), Papagoite, a new copper-bearing mineral from Ajo, AZ, Am.Min.: 45: 599-611.]
  		•  Anauxite
    Habit: Minute, tabular
    Colour: Pale brown
    Description: Occurs in cavities in andesite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 192; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 86, 108.]
  		•  Andalusite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Description: Occurs in Cardigan Gneiss.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 110; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  Andradite
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
    Description: Occurs as zones of massive material at contacts between Paleozoic limestones & quartz monzonite intrusives.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 111; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 94.]
    Site Photo
    Pima Co., Arizona, USA
    © Karl Volkman
  		•  Anorthite
    var: Labradorite
    (Ca,Na)[Al(Al,Si)Si
     
    2
    		O
     
    8
    		]
    Description: As phenocrysts up to 2 inches long on intrusive & flow porphyritic rocks in the Pantano Formation.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 329-330; Cooper, J.R. (1961), Turkey-track porphyry - A possible guide for correlation of Miocene rocks in southeastern AZ, AZ Geol. Soc. Digest: 4: 17-35.]
  		•  Anthophyllite
    ☐[Mg
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 115.]
  		•  'Apatite'
    Description: Minor amounts in altered rock.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 117; Hutton, C.O. & A.C. Vlisidis (1960), Papagoite, a new copper-bearing mineral from Ajo, AZ, Am.Min.: 45: 599-611.]
  		•  'Apophyllite'
    Description: Occurs in skarn with bornite and kinoite in Paleozoic limestone & dolomite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 142; Anthony, J.W. & R.B. Laughon (1970), Kinoite, a new hydrous copper calcium silicate mineral from AZ, Am.Min.: 55: 709-713.]
  		•  Apophyllite-(KF)
    KCa
     
    4
    		[(F,OH)|Si
     
    8
    		O
     
    20
    		] · 8H
     
    2
    		O
    Reference: []
    Site Photo
    Santa Rita Mts, Pima Co., Arizona, USA
    © JDehove
  		•  Aragonite
    CaCO
     
    3
    Description: Copper-stained in fissures.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 118.]
  		•  Azurite
    Cu
     
    3
    		[OH|CO
     
    3
    		]
     
    2
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 126; Schwartz, G.M. (1934), Paragenesis of the oxidized ores of copper, Econ.Geol.: 29: 55-75.]
  		•  Baryte
    BaSO
     
    4
    Description: Abundant gangue mineral in some sulfide deposits.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 128, 166, 167, 207, 214, 215, 317, 377; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582; Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269.]
    Site Photo
    Pima Co., Arizona, USA
    © G c De'Young
  		•  Beryl
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 134, 145, 400; Shawe, D.R. (1966), AZ-NM & NV-UT beryllium belts, USGS PP 550-C: 206-213; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 93.]
  		•  Biotite
    Reference: [Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 94.]
  		•  Bismuth
    Bi
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 138; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. Mines Bull. 153: 12.]
  		•  Bornite
    Cu
     
    5
    		FeS
     
    4
    Reference: [Am Min 55:5-6 pp 709-715; : Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
  		•  Braunite
    Mn
    2+
     
    		Mn
    3+
    6
    		[O
     
    8
    		|SiO
     
    4
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 145; Havens, R., et al (1954), Beneficiation of oxide manganese and manganese-silver ores from southern AZ, US Bur. of Mines Rept. Inv. 5024.]
  		•  Brochantite
    Cu
     
    4
    		[(OH)
     
    6
    		|SO
     
    4
    		]
    Reference: [Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 63.]
  		•  Calcite
    CaCO
     
    3
    Reference: [Am Min 55:5-6 pp 709-715; : Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
  		•  Calcite
    var: Limestone Onyx
    Reference: [Univ. AZ Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZ: 47.]
  		•  Cerussite
    PbCO
     
    3
    Description: Sand carbonate.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 158.]
  		•  Chalcanthite
    CuSO
     
    4
    		·5H
     
    2
    		O
    Description: Occurs as fibrous veins.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 161; Creasy, S.C. & G.L. Quick (1955), Copper deposits of part of Helvetia mining district, Pima Co., AZ, USGS Bull. 1027-F: 301-323; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 91-141.]
  		•  'Chalcedony'
    Description: Occurs in cavities in basalt.
    Reference: [Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 85.]
  		•  'Chalcedony
    var: Agate'
    SiO
     
    2
    Reference: [MRDS database Dep. ID file #10098118, MRDS ID #I000806.]
  		•  'Chalcedony
    var: Petrified Wood'
    Description: Common in the Cretaceous Amole Formation.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 350.]
  		•  Chalcocite
    Cu
     
    2
    		S
    Description: Sooty variety in veins & disseminated ores.
    Reference: [Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. Mines Bull. 153: 16.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Description: Most abundant copper ore mineral.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 166, 167; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582; Am.Min.: 55(5-6): 709-715.; : Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
  		•  Chlorargyrite
    AgCl
    Reference: [Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 42.]
  		•  'Chlorite Group'
    Description: Commonest ferromagnesian mineral in the district. Dominant dark component of all Pre-Cornelia formations. Pseudomorphs after biotite, or less commonly, after hornblende; vein fillings; non-pseudomorphous replacement mineral.
    Reference: [Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 95-96.]
  		•  Chrysocolla
    (Cu,Al)
     
    2
    		H
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·nH
     
    2
    		O
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 174.]
    Site Photo
    Ajo District, Pima Co., Arizona, USA
    © 2005 Peter Cristofono
  		•  'Clay'
    Reference: [MRDS database Dep. ID file #10056438, MRDS ID #TC00252.]
  		•  Clinochlore
    (Mg,Fe
    2+
     
    		)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Description: Occurs in limestone at contact with Leatherwood Quartz Diorite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 170.]
  		•  Clinochlore
    var: Diabantite
    (Mg,Fe,Al)
     
    6
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    8
    Description: Identified by optics in a specimen from the Concentrator volcanics (pseudomorphous after biotite).
    Reference: [Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 95.]
  		•  'Clinoptilolite'
    Description: Occurs in altered tuff.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 306; Eyde, T.H. (1978), Arizona zeolites, AZ Dept. Mineral Resources Mineral Rept. 1.]
  		•  Clinozoisite
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Description: Occurs in arkose at the contact with the Leatherwood Quartz Diorite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 179.]
  		•  Cobaltite
    CoAsS
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 180; Galbraith, F. W. (1947), Minerals of AZ, AZ Bur. of Mines Bull. 153: 23.]
  		•  Copiapite
    Fe
    2+
     
    		Fe
    3+
    4
    		[OH|(SO
     
    4
    		)
     
    3
    		]
     
    2
    		 · 20H
     
    2
    		O
    Description: Silky fibers & foliated masses.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 184.]
  		•  Copper
    Cu
    Reference: [Am Min 55:5-6 pp 709-715; : Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
    Site Photo
    Ajo District, Pima Co., Arizona, USA
    © Rob Lavinsky
  		•  Cristobalite
    SiO
     
    2
    Description: Occurs in cavities in andesite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 192, 402; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 86, 108.]
  		•  Cuprite
    Cu
     
    2
    		O
    Habit: Cubic
    Description: Occurs in small fractures.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 196; Kerr, P.F. (1951), Alteration features at Silverbell, AZ, Geol. Soc. Amer. Bull.: 62: 451-480; Engineering Mining Jour. (1904), The Silverbell Camp, AZ: 77: 639; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. Mines Bull. 153: 30.]
  		•  Cuprite
    var: Chalcotrichite
    Cu
     
    2
    		O
    Description: Included in calcite crystals.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 152.]
    Site Photo
    Ajo District, Pima Co., Arizona, USA
    © fabreminerals.com
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [Am Min 55:5-6 pp 709-715; : Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
  		•  Dioptase
    Cu
     
    6
    		(Si
     
    6
    		O
     
    18
    		)·6H
     
    2
    		O
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 205.]
  		•  Djurleite
    Cu
     
    31
    		S
     
    16
    Reference: [: Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
  		•  Dolomite
    CaMg(CO
     
    3
    		)
     
    2
    Description: Occurs in metamorphosed limestones near contacts with intrusive rocks.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 207; Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269.]
  		•  Dyscrasite
    Ag
     
    3
    		Sb
    Description: A secondary mineral in quartz diorite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 210; Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269.]
  		•  Enstatite
    Mg
     
    2
    		[SiO
     
    3
    		]
     
    2
    Description: Occurs sparingly in some andesites.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 214; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 89.]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Description: Common in metamorphosed limestones in wall rocks of copper deposits.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 214; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582; Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 100.]
  		•  Epsomite
    MgSO
     
    4
    		·7H
     
    2
    		O
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 245.]
  		•  Fluorite
    CaF
     
    2
    Reference: [Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 43.]
  		•  Gadolinite-(Y)
    Y
     
    2
    		Fe
    2+
     
    		Be
     
    2
    		[O|SiO
     
    4
    		]
     
    2
    Description: Occurs in biotite gneiss.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 227, 427; Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56.]
  		•  Galena
    PbS
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 229.]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [Am Min 55:5-6 pp 709-715]
  		•  Gold
    Au
    Description: Occurs with copper and silver ores.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 235; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  Gonnardite
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 237.]
  		•  Goslarite
    var: Cuprogoslarite
    Description: Occurs in old mine workings.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 238; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 61.]
  		•  Gypsum
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Description: Occurs as Permian beds up to 50 feet thick below the Snyder Hill Limestone; includes alabaster.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 242; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 60; Stone, R.W. (1920), Gypsum deposits of the United States, USGS Bull. 697: 52; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582.]
  		•  Gypsum
    var: Satin Spar Gypsum
    Reference: [MRDS database Dep. ID file #10060183, MRDS ID #TC10140.]
  		•  Halite
    NaCl
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 243.]
  		•  Hedenbergite
    CaFe
    2+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Description: Common as a gangue mineral in contact metamorphic limestones.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 215, 245; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 90; Irvin, G.W. (1959), Pyrometasomatic deposits at San Xavier mine, in Southern Arizona guidebook II, AZ Geol. Soc. Digest: 2: 195-197.]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Wilson, E.D., et al (1934), AZ Bur. Mines Bull. 137: 178.]
    Site Photo
    Pima Co., Arizona, USA
    © Antonio Borrelli
  		•  Hematite
    var: Specularite
    Reference: [MRDS database Dep. ID file #10062146, MRDS ID #TC35429.]
  		•  Hemimorphite
    Zn
     
    4
    		[(OH)
     
    2
    		|Si
     
    2
    		O
     
    7
    		] · H
     
    2
    		O
    Colour: Light green-blue
    Description: Mammillary crusts.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 248.]
  		•  'Heulandite'
    Description: Micro-crystals with galena.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 250.]
  		•  'Hornblende'
    Reference: [Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 94.]
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Description: Both pri. constit. Cornelia Quartz Monzonite & by alt. of titanite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 258; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  Jarosite
    KFe
    3+
     
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    Description: Largely confined to weathered capping of notably pyritic ores.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 262; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  Kinoite (TL)
    Ca
     
    2
    		Cu
     
    2
    		(H
     
    2
    		O)
     
    2
    		[Si
     
    3
    		O
     
    10
    		]
    Type Locality: Santa Rita Mts, Pima Co., Arizona, USA
    Reference: [: Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
    Site Photo
    Santa Rita Mts, Pima Co., Arizona, USA
    © JDehove
  		•  Lechatelierite
    SiO
     
    2
    Reference: [azminerals.com]
  		•  Limonite
    FeO(OH)·nH
     
    2
    		O
    Description: Pseudomorphic after magnetite. Matrix for gold.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 235.]
  		•  Maghemite
    Fe
     
    2
    		O
     
    3
    Description: Occurs as a thin, brownish surface as an alteration product on magnetite pebbles and boulders.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 282.]
  		•  Magnesiohornblende
    ☐[Ca
     
    2
    		][Mg
     
    4
    		Al][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
    Description: As bodies of hornblendite in Cardigan Gneiss.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 283; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 92.]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Description: Occurs in contact metamorphic orebodies.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 215, 284; Guild, F.N. (1934), Microscopic relations of magnetite, hematite, pyrite and chalcopyrite, Econ.Geol.: 29: 107-120; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 39.]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 126, 286; Schwartz, G.M. (1934), Paragenesis of the oxidized ores of copper, Econ.Geol.: 29: 55-75; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141; Joralemon, I.B. (1914), The Ajo copper district, AZ, Engr.Mining Jour.: 98: 663.]
  		•  'Marble'
    Reference: [MRDS database Dep. ID file #10062166, MRDS ID #TC35467.]
  		•  Marcasite
    FeS
     
    2
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 290; Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol.: 12: 237-269.]
  		•  Melanterite
    FeSO
     
    4
    		·7H
     
    2
    		O
    Description: Efflorescences on walls of old mine workings.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 292.]
  		•  'Mica Group'
    Reference: [MRDS database Dep. ID file #10283674]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 94.]
  		•  Molybdenite
    MoS
     
    2
    Description: In sparse amounts.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 302; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141; Schwartz, G.M. (1947), Hydrothermal alteration in the 'porphyry copper' deposits, Econ.Geol. 42: 319-352; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. of Mines Bull. 153: 24.]
  		•  Mordenite
    (Na
     
    2
    		,Ca,K
     
    2
    		)Al
     
    2
    		Si
     
    10
    		O
     
    24
    		·7H
     
    2
    		O
    Description: Occurs in altered tuff.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 306; Eyde, T.H. (1978), Arizona zeolites, AZ Dept. Mineral Resources Mineral Rept. 1.]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Description: As 'books' of broadleaved, rather coarsely crystalline material in the Cardigan gneiss and associated pegmatites.
    Reference: [Thomas, W.J. & R.B. Gibbs (1983), Famous mineral localities: The New Cornelia mine, Ajo, AZ, Min.Rec.: 14: 283-298; Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 94-95.]
  		•  Nontronite
    Na
     
    0.3
    		Fe
     
    2
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Description: Uncommon secondary mineral.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 314; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  'Olivine'
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]
    Description: Occurs sparingly in gabbro, diabase and andesites.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 317.]
  		•  Opal
    SiO
     
    2
    		·nH
     
    2
    		O
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 193; Sun, M.S. (1961), Differential thermal analysis of shattuckite, Am.Min.: 46: 67-77.]
    Site Photo
    Tucson area, Tucson, Pima Co., Arizona, USA
    © J.N
  		•  Orthoclase
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582: 94.]
  		•  Papagoite
    CaCu[H
     
    3
    		AlSi
     
    2
    		O
     
    9
    		]
    Description: In altered rock with anatase.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 109.]
    Site Photo
    Ajo District, Pima Co., Arizona, USA
    © Brent Thorne
  		•  Piemontite
    {Ca
     
    2
    		}{Al
     
    2
    		Mn
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 328.]
  		•  'Psilomelane'
    Reference: [No reference listed]
  		•  Pyrite
    FeS
     
    2
    Description: Abundant in and near the mining areas.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 341.]
    Site Photo
    Ajo District, Pima Co., Arizona, USA
    © 2005 Peter Cristofono
  		•  Pyrolusite
    MnO
     
    2
    Description: Occurs in quartz.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 343.]
  		•  Pyrope
    Mg
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Description: In the front range and crestal portions of the main range in gneiss & granite complexes & in pegmatite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 106; Pilkington, H.D. (1961), A mineralogic investigation of some garnets from the Catalina Mountains, Pima Co., AZ, AZ Geol. Soc. Digest: 4: 117-122.]
  		•  Pyrophyllite
    Al
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 345.]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Description: Occurs in chalcopyrite ores.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 346.]
  		•  Quartz
    SiO
     
    2
    Reference: [Am Min 55:5-6 pp 709-715; : Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
  		•  Quartz
    var: Chert
    Colour: Reddish
    Description: Abundant in some beds of Permian limestones; also abundant in one bed of the Earp Formation as small, reddish, jellybean-like bodies.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 349.]
  		•  Rhodochrosite
    MnCO
     
    3
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 353.]
  		•  Rhodonite
    MnSiO
     
    3
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 354.]
  		•  Riebeckite
    var: Crocidolite
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 355.]
  		•  Rutile
    TiO
     
    2
    Habit: Stumpy
    Description: Alteration product of biotite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 359; Hutton, C.O. & A.C. Vlisidis (1960), Papagoite, a new copper-bearing mineral from Ajo, AZ, Am.Min.: 45: 599-611; Schwartz, G.M. (1958), Alteration of biotite under mesothermal conditions, Econ.Geol. 53: 164-177..]
  		•  Saponite
    Ca
     
    0.25
    		(Mg,Fe)
     
    3
    		(Si,Al)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 361.]
  		•  Scheelite
    Ca[WO
     
    4
    		]
    Description: Occurs in contact zones.
    Reference: [Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 81.]
  		•  Schorl
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 400; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. Mines Bull. 141: 83.]
  		•  'Sericite'
    Description: An alteration product of schist wall rocks.
    Reference: [Wilson, E.D., et al (1934), AZ Bur. Mines Bull. 137: 181.]
  		•  Shattuckite
    Cu
     
    5
    		[(OH)
     
    2
    		|(SiO
     
    3
    		)
     
    4
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 193; Sun, M.S. (1961), Differential thermal analysis of shattuckite, Am.Min.: 46: 67-77.]
  		•  Siderite
    FeCO
     
    3
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 370; Stewart, C.A. (1912)The geology and ore deposits of the Silverbell mining district, AZ, AIME Bull. 65: 455-505 (AIME Transactions, Vol. 43: 240-290.]
  		•  'Silica'
    Reference: [MRDS database Dep. ID file #10065021, MRDS ID #TC40009.]
  		•  Silver
    Ag
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 142.]
  		•  'Smectite Group'
    A
     
    0.3
    		D
     
    2-3
    		[T
     
    4
    		O
     
    10
    		]Z
     
    2
    		·nH
     
    2
    		O
    Reference: [Am Min 55:5-6 pp 709-715; : Anthony, J.W. & R.B. Laughton (1970), Kinoite, A new hydrous copper calcium silicate mineral from Arizona, American Mineralogist: 55: 709-713.]
  		•  Smithsonite
    ZnCO
     
    3
    Description: As earthy mixes of smithsonite and cerussite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 374; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 49.]
  		•  Smithsonite
    var: Dry Bone Ore
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 374.]
  		•  Spessartine
    Mn
    2+
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Description: In the front range and crestal portions of the main range in gneiss & granite complexes & in pegmatite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 106; Pilkington, H.D. (1961), A mineralogic investigation of some garnets from the Catalina Mountains, Pima Co., AZ, AZ Geol. Soc. Digest: 4: 117-122.]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Description: Occurs in many mines & prospects.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 377; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, AZ, USGS Bull. 582.]
  		•  Stibnite
    Sb
     
    2
    		S
     
    3
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 382.]
  		•  Sulphur
    S
     
    8
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 386.]
  		•  Tennantite
    (Cu,Ag,Fe,Zn)
     
    12
    		As
     
    4
    		S
     
    13
    Description: Rare.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 390; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  Tenorite
    CuO
    Habit: Micro-crystals
    Description: Occurs as rare micro-crystals.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 391.]
  		•  Tetrahedrite
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
    Description: Very rare as spots on galena.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 393.]
  		•  Thenardite
    Na
     
    2
    		SO
     
    4
    Description: Ephemeral thin, spotty crusts on andesitic volcanic rocks.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 395.]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Description: As a primary constituent of all igneous rocks.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 397; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  Topaz
    Al
     
    2
    		[(F,OH)
     
    2
    		|SiO
     
    4
    		]
    Description: In New Cornelia Quartz Monzonite West of Gibson Arroyo fault.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 399; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141.]
  		•  'Tourmaline'
    Habit: Prismatic
    Colour: Black
    Description: Widespread in Little Ajo Mts but not closely associated with the New Cornelia orebody. Brilliant crystals coating joint planes in Cardigan gneiss, Chico Chuni quartz monzonite, Concentrator volcanics and locally, the Cornelia quartz monzonite. Also tourmaline-bearing quartz veins in cardigan gneiss.
    Reference: [Thomas, W.J. & R.B. Gibbs (1983), Famous mineral localities: The New Cornelia mine, Ajo, AZ, Min.Rec.: 14: 283-298; Gilluly, J. (1946), The Ajo mining district, Arizona, USGS PP 209: 94.]
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Creasy, S.C. & G.L. Quick (1955), Copper deposits of part of Helvetia mining district, Pima Co., AZ, USGS Bull. 1027-F: 312.]
  		•  Tridymite
    SiO
     
    2
    Description: Occurs in cavities in andesite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 192, 402; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 86, 108.]
  		•  Valleriite
    (Fe
    2+
     
    		,Cu)
     
    4
    		(Mg,Al)
     
    3
    		[(OH,O)
     
    6
    		|S
     
    4
    		]
    Reference: [MinRec 9:113]
  		•  Vanadinite
    Pb
     
    5
    		[Cl|(VO
     
    4
    		)
     
    3
    		]
    Description: Occurs as a secondary mineral in replacement deposits in metamorpbhosed limestones associated with iron & manganese oxides, etc.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 411; Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol., 12: 237-269.]
  		•  Vermiculite
    (Mg,Fe,Al)
     
    3
    		(Al,Si)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·4H
     
    2
    		O
    Description: Occurs in rocks metamorphosed by igneous intrusions.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 413; Brown, W.H. (1939), Tucson Mountains, an Arizona basin and range type, Geol. Soc. Amer. Bull.: 50: 697-760.]
  		•  Vesuvianite
    Ca
     
    10
    		(Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    9
    		O
     
    34
    		(OH)
     
    4
    Description: Occurs in contact metamorphic rocks.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 414; Brown, W.H. (1939), Tucson Mountains, an Arizona basin and range type, Geol. Soc. Amer. Bull.: 50: 697-760.]
  		•  Wolframite
    (Fe
    2+
     
    		)WO
     
    4
     
     
    		to (Mn
    2+
     
    		)WO
     
    4
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 423.]
  		•  Wollastonite
    Ca[SiO
     
    3
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 215.]
  		•  Wulfenite
    Pb[MoO
     
    4
    		]
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 411; Schrader, F.C. (1917), The geologic distribution and genesis of the metals in the Santa Rita-Patagonia Mountains, AZ, Econ.Geol., 12: 237-269.]
  		•  Xenotime-(Y)
    YPO
     
    4
    Description: Occurs in biotite gneiss.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 227, 427; Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, AZ Geol. Soc. Digest: 3: 53-56.]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Habit: Small, stout crystals
    Description: Occurs in the New Cornelia Quartz Monzonite.
    Reference: [Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 431; Gilluly, J. (1937), Geology and ore deposits of the Ajo quadrangle, AZ, AZ Bur. of Mines Bull. 141; Hutton, C.O. & A.C. Vlisidis (1960), Papagoite, a new copper-bearing mineral from Ajo, AZ, Am.Min.: 45: 599-611.]


    138 entries listed. 103 valid minerals. 1 type locality (valid mineral).

    Localities in this Region:


    181 localities of a total of 1717 localities shown. Additional sublocalities are indicated by the green plus sign(+).
    USA
     
    • Arizona
      • Pima Co.
        • Alamo Crossing
        • Apache Springs District
        • Barry M. Goldwater Air Force Range
        • Cabeza Prieta National Wildlife Refuge
        • Cerro Blanco Mts
        • Crittenden
        • Helmet Peak area
        • Rincon Valley
        • Samaniego Peak
        • Santa Rosa Mts
        • Silver Bell
        • Stevens Mountain

    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: 31st Oct 2009 00:42:44