Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Quistiav, Guern, Pontivy, Morbihan, Brittany, France

StandardDetailedBy ChemistrySearch Google

(Quistiav, Guern, Pontivy, Morbihan, Bretagne, France)

Quartz-pitchblende vein in granite, near Quistiav hamlet, WSW of Guern.
Two generations of quartz :
- Early palissadic quartz, smokey or hematized quartz
- Cryptocrystalline quartz with fragments of early pitchblende and spherolites of secondary pitchblende. This quartz contains the sulphide mineralization




Group 1 - Elements
  		• Bismuth1.CA.05
    Bi
    Group 2 - Sulphides and Sulfosalts
  		• Acanthite2.BA.35
    Ag
     
    2
    		S
  		• Aikinite2.HB.05a
    PbCuBiS
     
    3
  		• Arsenopyrite2.EB.20
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
  		• Bismuthinite2.DB.05
    Bi
     
    2
    		S
     
    3
  		• Bournonite2.GA.50
    PbCuSbS
     
    3
  		• Chalcopyrite2.CB.10a
    CuFeS
     
    2
  		• Cosalite2.JB.10
    Pb
     
    2
    		Bi
     
    2
    		S
     
    5
  		• Covellite2.CA.05a
    CuS
  		• Cubanite2.CB.55a
    CuFe
     
    2
    		S
     
    3
  		• Digenite2.BA.10
    Cu
     
    9
    		S
     
    5
  		• Emplectite2.HA.05
    CuBiS
     
    2
  		• Galena2.CD.10
    PbS
  		• Greigite2.DA.05
    Fe
    2+
     
    		Fe
    3+
    2
    		S
     
    4
  		• Kobellite2.HB.10a
    Pb
     
    22
    		Cu
     
    4
    		(Bi,Sb)
     
    30
    		S
     
    69
  		• Mackinawite2.CC.25
    (Fe,Ni)
     
    9
    		S
     
    8
  		• Marcasite2.EB.10a
    FeS
     
    2
  		• Matildite2.JA.20
    AgBiS
     
    2
  		• Naumannite2.BA.55
    Ag
     
    2
    		Se
  		• Pearceite2.GB.15
    [(Ag,Cu)
     
    6
    		(As,Sb)
     
    2
    		S
     
    7
    		][Ag
     
    9
    		CuS
     
    4
    		]
  		• Pyrite2.EB.05a
    FeS
     
    2
  		• Pyrrhotite2.CC.10
    Fe
     
    7
    		S
     
    8
    		, (-4M), also given as Fe
     
    1-x
    		S (x = 0 - 0.2)
  		• Sphalerite2.CB.05a
    (Zn,Fe
    2+
     
    		)S
  		• Stannite2.CB.15a
    Cu
     
    2
    		(Fe,Zn)SnS
     
    4
    Group 4 - Oxides and Hydroxides
  		• Curite4.GB.55
    Pb
     
    3+x
    		(H
     
    2
    		O)
     
    2
    		[(UO
     
    2
    		)
     
    4
    		O
     
    4+x
    		(OH)
     
    3-x
    		]
     
    2
  		• Fourmarierite4.GB.25
    PbU
     
    4
    		O
     
    13
    		·4H
     
    2
    		O
  		• Goethite4.FD.10
    α-Fe
    3+
     
    		O(OH)
  		• Hematite4.CB.05
    Fe
     
    2
    		O
     
    3
  		• Opal4.DA.10
    SiO
     
    2
    		·nH
     
    2
    		O
  		• Quartz4.DA.05
    SiO
     
    2
  		• Uraninite4.DL.05
    UO
     
    2
      var: Pitchblende4.DL.05
    UO
     
    2
    Group 7 - Sulphates, Chromates, Molybdates and Tungstates
  		• Anglesite7.AD.35
    PbSO
     
    4
  		• Johannite7.EB.05
    Cu(UO
     
    2
    		)
     
    2
    		[OH|SO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
  		• Paracoquimbite7.CB.55
    Fe
     
    2
    		(SO
     
    4
    		)
     
    3
    		·9H
     
    2
    		O
  		• Uranopilite7.EA.05
    (UO
     
    2
    		)
     
    6
    		[(OH)
     
    10
    		|SO
     
    4
    		] · 12H
     
    2
    		O
    Group 8 - Phosphates, Arsenates and Vanadates
  		• Autunite8.EB.05
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
  		• Bassetite8.EB.10
    Fe
    2+
     
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
  		• Chernikovite8.EB.15
    (H
     
    3
    		O)
     
    2
    		(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
  		• Dewindtite8.EC.10
    Pb(UO
     
    2
    		)
     
    3
    		[OH|PO
     
    4
    		]
     
    2
    		 · 3H
     
    2
    		O
  		• Meta-autunite8.EB.10
    Ca(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		· 6-8H
     
    2
    		O
  		• Metatorbernite8.EB.10
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
  		• Metauranocircite8.EB.10
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 7H
     
    2
    		O
  		• Parsonsite8.EA.10
    Pb
     
    2
    		(UO
     
    2
    		)[PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
  		• Phosphuranylite8.EC.10
    (H
     
    3
    		O)
     
    3
    		KCa(UO
     
    2
    		)
     
    7
    		[O|PO
     
    4
    		]
     
    4
    		 · 8H
     
    2
    		O
  		• Sabugalite8.EB.55
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·16H
     
    2
    		O
  		• Torbernite8.EB.05
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
  		• Uranocircite8.EB.05
    Ba(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 10H
     
    2
    		O
    Group 9 - Silicates
  		• Coffinite9.AD.30
    (U,Th)[(OH)
     
    4x
    		|(SiO
     
    4
    		)
     
    1-x
    		]
  		• Kasolite9.AK.15
    Pb(UO
     
    2
    		)[SiO
     
    4
    		] · H
     
    2
    		O
  		• Sklodowskite9.AK.10
    Mg(UO
     
    2
    		)
     
    2
    		[HSiO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
  		• Uranophane9.AK.15
    Ca(UO
     
    2
    		)
     
    2
    		[HSiO
     
    4
    		]
     
    2
    		 · 5H
     
    2
    		O
    Unclassified Minerals
  		• 'Chalcedony'-
  		• 'Gummite'-
  		• 'Tennantite-Tetrahedrite Series'-


    55 entries listed. 52 valid minerals.

    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 page is currently not sponsored. Click here to find out how you can sponsor this page.

    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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: 27th Nov 2009 04:12:50