BertranditePegmatite quarries, Menez-Goaillou-en-Coray, Coray, Finistère, Brittany, France
Photo: P L e Roch Aplitic granite cupola, with disseminated arsenopyrite, intruded in Brioverian schists.
Numerous mineralized quartz veins (pneumatolytic-hydrothermal quartz-beryl-molybdenite veins) with greisens cut the granite.
Presence of cleavable quartz.
Ref.:
- Chauris, L. , Chantret, F. and Le Bail, F. (1959). Sur la présence de bertrandite au Menez Gouaillou en Coray (Finistère). 84° Congrès National des Sociétés savantes.
- Chauris, L. and Le Bail, F. (1959). "Le massif de granulite du Menez Gouaillou en Coray (Finistère)." Bulletin de la Société Géologique et Minéralogique de Bretagne, 2(1).
Mineral List
22 entries listed. 19 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 locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org 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.
Mineral and Locality Search
