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Azias, Ponte da Barca, Viana do Castelo District, Portugal

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A complex of Quartz mines.





Mineral List:
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: [self-find by Nuno Afonso, optical and XRD analysed.]
  		•  Arsenopyrite
    FeAsS - (Fe
     
    0.90
    		Co
     
    0.10
    		)AsS
    Reference: [self-find by Nuno Afonso, optical and XRD analysed.]
  		•  Autunite
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
    Reference: []
  		•  Beraunite
    Fe
    2+
     
    		Fe
    3+
    5
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    4
    		] · 4H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Bermanite
    Mn
    2+
     
    		(H
     
    2
    		O)
     
    4
    		[Mn
    3+
    2
    		(OH)
     
    2
    		(PO
     
    4
    		)
     
    2
    		]
    Reference: [Self-find by Nuno Afonso; XRD analysed.]
    Site Photo
    Azias, Ponte da Barca, Viana do Castelo District, Portugal
    © luigi chiappino
  		•  Cacoxenite
    Fe
    3+
    24
    		Al[(OH)
     
    12
    		|O
     
    6
    		|(PO
     
    4
    		)
     
    17
    		] · 17H
     
    2
    		O
    Reference: [Self-collected by Pedro Alves.]
  		•  Dravite
    [Na][Mg
     
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed.]
  		•  Fairfieldite
    Ca
     
    2
    		(Mn
    2+
     
    		,Fe
    2+
     
    		)[PO
     
    4
    		]
     
    2
    		 · 2H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Frondelite
    Mn
    2+
     
    		Fe
    3+
    4
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed.]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Reference: [self-find by Nuno Afonso, optical and XRD analysed.]
  		•  Hureaulite
    (Mn,Fe)
     
    5
    		(PO
     
    3
    		OH)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·4H
     
    2
    		O
    Reference: [Self-collected by Pedro Alves.]
  		•  'Jahnsite'
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Keckite
    CaMnMn
    2+
    2
    		Fe
    3+
    3
    		(PO
     
    4
    		)
     
    4
    		(OH)
     
    3
    		(H
     
    2
    		O)
     
    7
    Reference: [self-find by Nuno Afonso, optical and XRD analysed.]
  		•  Lithiophorite
    (Al,Li)MnO
     
    2
    		(OH)
     
    2
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed.]
  		•  Manganosegelerite
    (Mn
    2+
     
    		,Ca)(Mn
    2+
     
    		,Fe
    2+
     
    		,Mg)Fe
    3+
     
    		(PO
     
    4
    		)
     
    2
    		(OH)
     
    2
    		 · 4H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Matulaite
    CaAl
     
    18
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    3
    		]
     
    4
    		 · 28H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Meta-autunite
    Ca(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		· 6-8H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Metatorbernite
    Cu(UO
     
    2
    		)
     
    2
    		[PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: []
  		•  Phosphosiderite
    FePO
     
    4
    		·2H
     
    2
    		O
    Reference: [Self-collected by Pedro Alves.]
  		•  Purpurite
    (Mn
    3+
     
    		,Fe
    3+
     
    		)[PO
     
    4
    		]
    Reference: [Self-collected by Pedro Alves.]
  		•  Pyrite
    FeS
     
    2
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Quartz
    SiO
     
    2
    Description: Good cristals, Clear and milky, to 50cm.
    Reference: []
    Site Photo
    Azias, Ponte da Barca, Viana do Castelo District, Portugal
    © Rui Nunes 2008
  		•  Quartz
    var: Rose Quartz
    Reference: []
  		•  Quartz
    var: Smoky Quartz
    SiO
     
    2
    Reference: []
  		•  Robertsite
    Ca
     
    3
    		Mn
    3+
    4
    		[(OH)
     
    3
    		|(PO
     
    4
    		)
     
    2
    		]
     
    2
    		 · 3H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Rockbridgeite
    Fe
    2+
     
    		Fe
    3+
    4
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Self-collected by Pedro Alves.]
  		•  Schorl
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: []
  		•  Scorodite
    Fe
    3+
     
    		AsO
     
    4
    		·2H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Sicklerite
    (LiMn
    2+
     
    		,Fe
    3+
     
    		)[PO
     
    4
    		]
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Stewartite
    Mn
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 8H
     
    2
    		O
    Reference: [Self-collected by Pedro Alves.]
  		•  Strengite
    FePO
     
    4
    		·2H
     
    2
    		O
    Reference: [Self-collected by Pedro Alves.]
    Site Photo
    Azias, Ponte da Barca, Viana do Castelo District, Portugal
    © Martins da Pedra
  		•  Strunzite
    Mn
    2+
     
    		Fe
    3+
    2
    		[OH|PO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    Reference: [Self-collected by Pedro Alves.]
  		•  Torbernite
    Cu(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·12H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Triphylite
    LiFe
    2+
     
    		[PO
     
    4
    		]
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Triplite
    (Mn
    2+
     
    		,Fe
    2+
     
    		)
     
    2
    		[(F,OH)|PO
     
    4
    		]
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Variscite
    AlPO
     
    4
    		·2H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]
  		•  Vivianite
    Fe
    2+
    3
    		(PO
     
    4
    		)
     
    2
    		·8H
     
    2
    		O
    Reference: [Self-find by Nuno Afonso; optical and XRD analysed]


    38 entries listed. 35 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!
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