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La Villeder, Le Roc Saint-André, Morbihan, Brittany, France
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Apatite
La Villeder, Le Roc Saint-André, Morbihan, Brittany, France

Photo: Jacques Malassé
Latitude: 47°52'14"N
Longitude: 2°28'30"W
 
Name(s) in local language(s): "la mine" "mine de la Villeder" (ou Ville Der)
 
Pneumatolytic-hydrothermal quartz-cassiterite-beryl-arsenopyrite-molybdenite veins.
About 10 pits have been digged in the past from 1853 on, among them the "puit Saint Michel" 256m deep, with numerous galleries. All the pits are now flooded and secured. The works lasted from ~1856 to 1916, with only minor ore production. Probably worked in the Roman era.
The remaining buildings have been restored and turned in the recent years into a museum and a brewery.
An open cut ("la grande tranchée" ou "la grande carrière": "the great open cut " or "the great quarry")has been worked too: it still exists, but nowadays in a private property and collecting is prohibited.

Mineral List

Acanthite
Anatase
Andalusite
'Apatite'
Arsenopyrite
Bertrandite
Beryl
Bismuth
Bismuthinite
Bournonite
Brookite
Cacoxenite
Cassiterite
Chalcopyrite
'Columbite-Tantalite'
Covellite
Cubanite
Dolomite
Enargite
Ferberite
Fluorapatite
Fluorite
Freibergite
Galena
Goethite
Gold
Graphite
Hematite
Ilmenite
Jamesonite
Kaolinite
'K Feldspar
var: Adularia'

Kyanite
Mackinawite
Malachite
Marcasite
Molybdenite
Muscovite
Nacrite
Pharmacosiderite
Phenakite
Pyrite
Pyrrhotite
Rutile
Scheelite
Scorodite
Silver
Sphalerite
Stannite
Stibnite
Stromeyerite
Symplesite
Tetradymite
Topaz
'Tourmaline'
'Wolframite'


56 entries listed. 51 valid minerals.

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References

- Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 886.
- Hubert, M. (1987). "Secteur stannifère de La Villeder." Le Cahier des Micromonteurs(3),pp:3.
-Pierrot, R., Chauris, L. et al. (1980) "Inventaire minéralogique de la France N°9" "Morbihan", éditions de BRGM, Orléans, pp 281-284
- De Ascencao Guedes, R. et al. (2001). "Les espèces minérales du district de La Villeder." Le Règne Minéral(Hors Série 7), 42-58.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. 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 thousands 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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