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Kerroc'h, Guern, Pontivy, Morbihan, Brittany, France

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Quartz vein in granite (microcrystalline ocher and red quartz).
Located NE of Kerroc'h hamlet, near D1 road.





Mineral List:
  		•  Autunite
    Ca(UO
     
    2
    		)
     
    2
    		(PO
     
    4
    		)
     
    2
    		·11H
     
    2
    		O
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  'Chalcedony'
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Coffinite
    (U,Th)[(OH)
     
    4x
    		|(SiO
     
    4
    		)
     
    1-x
    		]
    Description: Replaces pitchblende.
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Galena
    PbS
    Description: Replaces pitchblende along cracks. Forms films on pyrite.
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  'Gummite'
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Marcasite
    FeS
     
    2
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Montmorillonite
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Description: Yellow-grey to greenish crusts, on pitchblende and quartz.
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Ningyoite
    CaU(PO
     
    4
    		)
     
    2
    		·1-2H
     
    2
    		O
    Description: Bluish-green or greenn crusts, at the contact between quartz and pitchblende.
    Reference: [Le Règne Minéral, Hors Série IV, 1998]
  		•  Pyrite
    FeS
     
    2
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Quartz
    SiO
     
    2
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Quartz
    var: Jasper
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Sabugalite
    HAl(UO
     
    2
    		)
     
    4
    		(PO
     
    4
    		)
     
    4
    		·16H
     
    2
    		O
    Reference: [Le Règne Minéral, Hors Série IV, 1998]
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Szomolnokite
    FeSO
     
    4
    		·H
     
    2
    		O
    Reference: []
  		•  'Tennantite-Tetrahedrite Series'
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]
  		•  Uraninite
    var: Pitchblende
    UO
     
    2
    Reference: [R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.]


    19 entries listed. 14 valid minerals.

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