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Quistiav, Guern, Morbihan, Brittany, France

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Name(s) in local language(s):Quistiav (or Questiave), Guern, 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

52 valid minerals.

The above list contains all mineral locality references listed on 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 locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


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.

Yann Lukas (1978) Roches et minéraux de Bretagne.

Pierrot, R., Chauris, L. et al. (1980) "Inventaire minéralogique de la France N°9" "Morbihan", éditions de BRGM, Orléans, pp 79-81.

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