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Rico District (Pioneer District), Dolores Co., Colorado, USA

StandardDetailedBy ChemistryMineral Photos (16)Site Photos (3)Search GoogleMineral Report for Region

Also known as Pioneer district. Ag, Au, Pb, Zn, Cu.




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


Mineral List:
  		•  Acanthite
    Ag
     
    2
    		S
    Reference: [MinRec 16:213]
  		•  Actinolite
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
    Reference: [Minerals of Colorado (1997) Eckel, E. B.]
  		•  'Adularia'
    KAlSi
     
    3
    		O
     
    8
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Alabandite
    Mn
    2+
     
    		S
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  'Allanite'
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Allophane
    (Al
     
    2
    		O
     
    3
    		)(SiO
     
    2
    		)
     
    1.3-2
    		·2.5-3H
     
    2
    		O
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Andalusite
    Al
     
    2
    		[O|SiO
     
    4
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Andradite
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Anglesite
    PbSO
     
    4
    Reference: [Min. Rec.:16(3):203-216]
  		•  Argyrodite
    Ag
     
    8
    		GeS
     
    6
    Reference: [Min. Rec.:16(3):203-216]
  		•  Aurichalcite
    (Zn,Cu)
     
    5
    		[(OH)
     
    3
    		|CO
     
    3
    		]
     
    2
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Baryte
    BaSO
     
    4
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  β-Uranophane
    Ca(UO
     
    2
    		)
     
    2
    		[HSiO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Bismuthinite
    Bi
     
    2
    		S
     
    3
    Reference: [Min. Rec.:16(3):203-216]
  		•  Bornite
    Cu
     
    5
    		FeS
     
    4
    Reference: [MinRec 16:203-216]
  		•  Bromargyrite
    AgBr
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Calcite
    CaCO
     
    3
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
    Site Photo
    Atlantic Cable Mine, Rico, Rico District (Pioneer District), Dolores Co., Colorado, USA
    © Alan Goldstein
  		•  Calcite
    var: Manganoan Calcite
    (Ca,Mn)CO
     
    3
    Reference: [Min. Rec.:16(3):203-216]
  		•  Carnotite
    K
     
    2
    		(UO
     
    2
    		)
     
    2
    		[VO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
    Reference: [MinRec 16:203-216]
  		•  Celestine
    SrSO
     
    4
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Cerussite
    PbCO
     
    3
    Reference: [Min. Rec.:16(3):203-216]
  		•  Chalcanthite
    CuSO
     
    4
    		·5H
     
    2
    		O
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Chalcocite
    Cu
     
    2
    		S
    Reference: [Minerals of Colorado (1997) Eckel, E. B.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Min. Rec.:16(3):203-216]
  		•  Chlorargyrite
    var: Bromian Chlorargyrite
    Ag(Cl,Br)
    Reference: [MinRec 16:203-216]
  		•  'Chlorite Group'
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Clinozoisite
    {Ca
     
    2
    		}{Al
     
    3
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Copper
    Cu
    Reference: [MinRec 16:203-216]
  		•  Cordierite
    (Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    5
    		O
     
    18
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Cosalite
    Pb
     
    2
    		Bi
     
    2
    		S
     
    5
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Covellite
    CuS
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Diaspore
    AlO(OH)
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Dolomite
    CaMg(CO
     
    3
    		)
     
    2
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Dolomite
    var: Ferroan Dolomite
    Reference: []
  		•  Enargite
    Cu
     
    3
    		AsS
     
    4
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Epidote
    var: Withamite
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Fluorite
    CaF
     
    2
    Reference: [Min. Rec.:16(3):203-216]
  		•  Galena
    PbS
    Reference: [Min. Rec.:16(3):203-216]
  		•  Galena
    var: Argentiferous Galena
    Reference: [Min. Rec.:16(3):203-216]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Gold
    Au
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Grossular
    Ca
     
    3
    		Al
     
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Gypsum
    Ca[SO
     
    4
    		] · 2H
     
    2
    		O
    Reference: [MinRec 16:203-216]
  		•  Halloysite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [MinRec 16:203-216]
  		•  Helvite
    Mn
    2+
    4
    		Be
     
    3
    		[S|(SiO
     
    4
    		)
     
    3
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Minerals of Colorado (1997) Eckel, E. B.]
    Site Photo
    Atlantic Cable Mine, Rico, Rico District (Pioneer District), Dolores Co., Colorado, USA
    © Alan Goldstein
  		•  'Hornblende'
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Hübnerite
    MnWO
     
    4
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Hydrozincite
    Zn
     
    5
    		[(OH)
     
    3
    		|CO
     
    3
    		]
     
    2
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Illite
    K
     
    0.65
    		A
     
    2.0
    		 [][Al
     
    0.65
    		Si,
     
    3.35
    		O
     
    10
    		](OH)
     
    2
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Jarosite
    KFe
    3+
     
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    Reference: [MinRec 16:203-216]
  		•  Kaolinite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Limonite
    FeO(OH)·nH
     
    2
    		O
    Reference: [MinRec 16:203-216]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [MinRec 16:203-216]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Massicot
    PbO
    Reference: [MinRec 16:203-216]
  		•  Melanterite
    var: Cuprian Melanterite
    (Fe,Cu)SO
     
    4
    		·7H
     
    2
    		O
    Reference: [MinRec 16:203-216]
  		•  Molybdenite
    MoS
     
    2
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
    Site Photo
    Rico Argentine Mine, Silver Creek, Rico District (Pioneer District), Dolores Co., Colorado, USA
    © Rob Lavinsky
  		• Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Pearceite
    [(Ag,Cu)
     
    6
    		(As,Sb)
     
    2
    		S
     
    7
    		][Ag
     
    9
    		CuS
     
    4
    		]
    Reference: [MinRec 16:203-216]
  		•  Polybasite
    [(Ag,Cu)
     
    6
    		(Sb,As)
     
    2
    		S
     
    7
    		][Ag
     
    9
    		CuS
     
    4
    		]
    Reference: [Min. Rec.:16(3):203-216]
  		•  Prehnite
    Ca
     
    2
    		Al
     
    2
    		Si
     
    3
    		O
     
    12
    		(OH)
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Proustite
    Ag
     
    3
    		AsS
     
    3
    Reference: [Min. Rec.:16(3):203-216]
  		•  Pyrargyrite
    Ag
     
    3
    		SbS
     
    3
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Pyrite
    FeS
     
    2
    Reference: [Min. Rec.:16(3):203-216]
    Site Photo
    Rico District (Pioneer District), Dolores Co., Colorado, USA
    © Rob ++++++++
  		•  Pyrolusite
    MnO
     
    2
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  'Pyroxene Group'
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Pyrrhotite
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Quartz
    SiO
     
    2
    Reference: [Min. Rec.:16(3):203-216]
  		•  Quartz
    var: Chert
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Rhodochrosite
    MnCO
     
    3
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Rhodonite
    MnSiO
     
    3
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Roscoelite
    K(V,Al)
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Rutile
    TiO
     
    2
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Sellaite
    MgF
     
    2
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  'Sericite'
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  'Serpentine Group'
    D
     
    2
    		[Si
     
    2
    		O
     
    5
    		](OH)4 + or - nH
     
    2
    		O
    Reference: [Minerals of Colorado (1997) Eckels, E. B.]
  		•  Serpierite
    Ca(Cu,Zn)
     
    4
    		(SO
     
    4
    		)
     
    2
    		(OH)
     
    6
    		·3H
     
    2
    		O
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Siderite
    FeCO
     
    3
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Silver
    Ag
    Reference: [Min. Rec.:16(3):203-216]
  		•  Smithsonite
    ZnCO
     
    3
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Min. Rec.:16(3):203-216]
  		•  Stephanite
    Ag
     
    5
    		SbS
     
    4
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  Sulphur
    S
     
    8
    Reference: [MinRec 16:203-216]
  		•  Tennantite
    (Cu,Ag,Fe,Zn)
     
    12
    		As
     
    4
    		S
     
    13
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Tetradymite
    Bi
     
    2
    		Te
     
    2
    		S
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Tetrahedrite
    (Cu,Fe,Ag,Zn)
     
    12
    		Sb
     
    4
    		S
     
    13
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
    Site Photo
    Enterprise Mine, Newman Hill, Rico District (Pioneer District), Dolores Co., Colorado, USA
    © 2008 Jesse Crawford
  		•  Topaz
    Al
     
    2
    		[(F,OH)
     
    2
    		|SiO
     
    4
    		]
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [Minerals of Colorado (1997) Eckel, E. B.]
  		•  Vesuvianite
    Ca
     
    10
    		(Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    9
    		O
     
    34
    		(OH)
     
    4
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]
  		•  'Wad'
    Reference: [Minerals of Colorado (1997) E.B. Eckels]
  		•  Wollastonite
    Ca[SiO
     
    3
    		]
    Reference: [The Mines and Minerals of the Great American Rift, R.W. Holmes & M.B. Kennedy, 1983]


    95 entries listed. 77 valid minerals.

    Localities in this Region:
    USA
     
    • Colorado
      • Dolores Co.
        • Rico District (Pioneer District)

    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 Colorado, 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: 24th Nov 2009 15:47:27