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Margabal Mine, Entraygues-sur-Truyère, Rodez, Aveyron, Occitanie, Francei
Regional Level Types
Margabal MineMine (Abandoned)
Entraygues-sur-TruyèreCommune
RodezArrondissement
AveyronDepartment
OccitanieRegion
FranceCountry

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Latitude & Longitude (WGS84):
44° 37' 35'' North , 2° 34' 10'' East
Latitude & Longitude (decimal):
44.62656,2.56963
GRN:
N30E02
Type:
Mine (Abandoned) - last checked 2024
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Entraygues-sur-Truyère1,417(2016)2.2km
Golinhac414(2016)2.6km
Florentin-la-Capelle333(2016)4.9km
Espeyrac254(2016)5.0km
Campuac460(2016)6.5km
Mindat Locality ID:
1679
Long-form identifier:
mindat:1:2:1679:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
Midi-Pyrénées
Other Languages:
French:
Mine de Margabal, Entraygues-sur-Truyère, Rodez, Aveyron, Occitanie, France
Occitan:
Entraigas (Antraigas), Rodés, Avairon, Occitània, Entraigas, Rodés, Avairon, Occitània, França


Margabal is a historic mine, a tiny hole in the south-West of France, which probably produces among the finesttorbernites in the world!

The mine was open for a very short time for uranium ore, from 1957 to 1960.
It is a small mine, about only 100 m of extension.

During the summer of 1997, well after the blasting of the only entrance, some motivated collectors have managed to open a new entrance by digging a tunnel from the top of the mine. The tunnel follows a vein of smoky quartz with a bit of metatorbernite.

In the same year, an exceptional piece, undoubtedly the most beautiful metatorbernite in the world, a stalactite of nearly 50 cm long was found by J. Adani! This incredible specimen is now in the Museum of Natural History in Paris.

Note: Situation in late May 2025. The mine is now sealed with a 1-meter-thick wall, featuring a bat access port (partially cut through).(https://www.mindat.org/mesg-746255.html).

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Gallery:

Ca(UO2)2(PO4)2 · 10-12H2OⓘAutunite
Cu(UO2)2(PO4)2 · 8H2OⓘMetatorbernite
SiO2ⓘQuartz var. Smoky Quartz
Cu(UO2)2(PO4)2 · 12H2OⓘTorbernite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘAutunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
ⓘTorbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
ⓘUranocircite8.EB.05Ba(UO2)2(PO4)2 · 10H2O
ⓘMeta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6H2O
ⓘMetatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O

List of minerals for each chemical element

HHydrogen
HⓘAutuniteCa(UO2)2(PO4)2 · 10-12H2O
HⓘMeta-autuniteCa(UO2)2(PO4)2 · 6H2O
HⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
HⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
HⓘUranocirciteBa(UO2)2(PO4)2 · 10H2O
OOxygen
OⓘAutuniteCa(UO2)2(PO4)2 · 10-12H2O
OⓘMeta-autuniteCa(UO2)2(PO4)2 · 6H2O
OⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
OⓘQuartzSiO2
OⓘQuartz var.Smoky QuartzSiO2
OⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
OⓘUranocirciteBa(UO2)2(PO4)2 · 10H2O
SiSilicon
SiⓘQuartzSiO2
SiⓘQuartz var.Smoky QuartzSiO2
PPhosphorus
PⓘAutuniteCa(UO2)2(PO4)2 · 10-12H2O
PⓘMeta-autuniteCa(UO2)2(PO4)2 · 6H2O
PⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
PⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
PⓘUranocirciteBa(UO2)2(PO4)2 · 10H2O
CaCalcium
CaⓘAutuniteCa(UO2)2(PO4)2 · 10-12H2O
CaⓘMeta-autuniteCa(UO2)2(PO4)2 · 6H2O
CuCopper
CuⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
CuⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
BaBarium
BaⓘUranocirciteBa(UO2)2(PO4)2 · 10H2O
UUranium
UⓘAutuniteCa(UO2)2(PO4)2 · 10-12H2O
UⓘMeta-autuniteCa(UO2)2(PO4)2 · 6H2O
UⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
UⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
UⓘUranocirciteBa(UO2)2(PO4)2 · 10H2O

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
France

This page 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, pleaseregister so you can add to our database. This locality information is for reference purposes only. You should never attempt tovisit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holdersfor access and that you are aware of all safety precautions necessary.

References

https://www.mindat.org/mesg-746255.html
Galvier, Jacques, Bayle, Louis-Dominique (1997) Bourse de Sainte-Marie-aux-Mines 1997.Le Règne Minéral, 3 (16) Les Éditions du Piat. 52-57
(1998) Letters.The Mineralogical Record, 29 (5) 493-495
www.criirad.org (2009)http://www.criirad.org/actualites/uraniumfrance/img/liste_departement.pdf
www.geowiki.fr (2014)https://www.geowiki.fr/index.php?title=Margabal
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