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Quistiav, Guern, Pontivy, Morbihan, Brittany, France

Quistiav (or Questiave), 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

Mineral List

Acanthite
Aikinite
Anglesite
Arsenopyrite
Autunite
Bassetite
Bismuth
Bismuthinite
Bournonite
Chalcopyrite
Chernikovite
Coffinite
Cosalite
Covellite
Cubanite
Curite
Dewindtite
Digenite
Emplectite
Fourmarierite
Galena
Goethite
Greigite
'Gummite'
Hematite
Johannite
Kasolite
Kobellite
Mackinawite
Marcasite
Matildite
Meta-autunite
Metatorbernite
Metauranocircite
Naumannite
Opal
Paracoquimbite
Parsonsite
Pearceite
Phosphuranylite
Pyrite
Pyrrhotite
Quartz
var: Chalcedony
Sabugalite
Sklodowskite
Sphalerite
Stannite
'Tennantite-Tetrahedrite Series'
Torbernite
Uraninite
var: Pitchblende
Uranocircite
Uranophane
Uranopilite


55 entries listed. 51 valid minerals.

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References

-(1) Pierrot, R., Chauris, L. et al. (1980) "Inventaire minéralogique de la France N°9" "Morbihan", éditions de BRGM, Orléans, pp 79-81
-(2) Chauris, L., LE BAIL, F. and GUIGUES, J.(1970): "Minéraux de Basse-Bretagne", Editions de la SEPNB, revue Pen ar Bed, Brest, pp 33-34

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. 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. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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