Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
La Chapelle Largeau, Deux-Sèvres, Nouvelle-Aquitaine, France

Oldest recorded age at locality: 290
Youngest recorded age at locality: 210

mindat Locality ID: 282325
mindat URL: http://www.mindat.org/loc-282325.html

Tectonic Settings:

Total number of sublocalities beneath "La Chapelle Largeau, Deux-Sèvres, Nouvelle-Aquitaine, France": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Bel Air Mine

Latitude: 46°56'55"N
Longitude: 0°-50'-26"E
Decimal Degree (lat, lon): 46.948611111111,-0.84055555555556
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ba C Ca Cu F Fe H K Mg Mn O P S Si U Zn 

Elements from minerals reported directly at this locality: 

Structural Groups for minerals in this locality: 
AutuniteCoronaditeCorundumDiasporeDufréniteFluoriteGypsumMarcasiteNickelineNone
PhosphuranylitePyriteQuartzSchoepiteSphaleriteSpinelSulphurZircon

32 IMA Minerals at location:
Autunite  (*)Bassetite  (*)Bornite  (*)Cacoxenite  (*)Chalcocite  (*)
Coffinite  (*)Cryptomelane  (*)Dufrénite  (*)Fluorite  (*)Goethite  (*)
Greigite  (*)Gypsum  (*)Hematite  (*)Ianthinite  (*)Marcasite  (*)
Metatorbernite  (*)Metauranocircite-I  (*)Phosphuranylite  (*)Pyrite  (*)Pyrrhotite  (*)
Quartz  (*)Rutherfordine  (*)Sabugalite  (*)Saléeite  (*)Schoepite  (*)
Sphalerite  (*)Studtite  (*)Sulphur  (*)Torbernite  (*)Uraninite  (*)
Uranophane-α  (*)Uranopilite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O2902701546711272
Bassetite  (*)NoneFe2+(UO2)2(PO4)2(H2O)1029027015467151
Bornite  (*)NoneCu5FeS42902101546715516
Cacoxenite  (*)NoneFe3+24AlO6(PO4)17(OH)12·75H2O290210154671280
Chalcocite  (*)NoneCu2S2902101546715707
Coffinite  (*)ZirconU(SiO4)·nH2O290270154671566
Cryptomelane  (*)CoronaditeK(Mn4+7Mn3+)O16290210154671599
Dufrénite  (*)DufréniteCa0.5Fe2+Fe3+5(PO4)4(OH)6·2H2O290210154671139
Fluorite  (*)FluoriteCaF22902101546719617
Goethite  (*)DiasporeFeO(OH)2902101546717437
Greigite  (*)SpinelFe2+Fe3+2S429021015467162
Gypsum  (*)GypsumCa(SO4)·2H2O2902101546716890
Hematite  (*)CorundumFe2O329021015467114640
Ianthinite  (*)NoneU4+2(UO2)4O6(OH)4·9H2O29027015467131
Marcasite  (*)MarcasiteFeS22902101546715674
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O290270154671443
Metauranocircite-I  (*)NoneBa(UO2)2(PO4)2·6H2O29027015467138
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O290270154671182
Pyrite  (*)PyriteFeS229021015467139462
Pyrrhotite  (*)NickelineFe7S82902101546719056
Quartz  (*)QuartzSiO229021015467161156
Rutherfordine  (*)None(UO2)(CO3)29027015467158
Sabugalite  (*)NoneHAl(UO2)4(PO4)4·16H2O29027015467187
Saléeite  (*)NoneMg(UO2)2(PO4)2(H2O)1029027015467195
Schoepite  (*)Schoepite(UO2)4O(OH)6(H2O)629027015467194
Sphalerite  (*)SphaleriteZnS23021015467121482
Studtite  (*)None(UO2)(O2)(H2O)2·2H2O29027015467125
Sulphur  (*)SulphurS2902101546712045
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O2902701546711059
Uraninite  (*)FluoriteUO22902701546712718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O290270154671890
Uranopilite  (*)None(UO2)6(SO4)O2(OH)6·14H2O29027015467194


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000657The La Commanderie Mine locality is found within the Mortagne mining district. The mine is responsible for the production of 3300 tons of Uranium metal. It is part of the Armorican Massif. The Mortagne district is also associated with the Deux-Sèvres area, all part of the Armorican Massif
Giersdorf_00000657aThe La Commanderie Mine locality is found within the Mortagne mining district. The mine is responsible for the production of 3300 tons of Uranium metal. It is part of the Armorican Massif. The Mortagne district is also associated with the Deux-Sèvres area, all part of the Armorican Massif


2 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
Giersdorf_00000657290270290-270U-PbThe age of mineralization being post-cooling of the 300-340 Ma granite bodies restricts the formation of the Uranium minerals to being genetically derived.   Yes U32248La Commanderie Mine, Le Temple, Deux-Sèvres, Nouvelle-Aquitaine, FranceLa Commanderie MineChauris et al. (1994) PMGFRA_243Age of the uranium mineralization in the Armorican Massif is associated with Hercynian peraluminous granites. From pg. 262: "The precise chronology of these mineralizations is not well established. The uranium veins appear to be the oldest (290-270 Ma by U/Pb dating) but underwent late remobilization processes."
Giersdorf_00000657a230210230-210K-ArThe age of mineralization being post-cooling of the 300-340 Ma granite bodies restricts the formation of the Uranium minerals to being genetically derived.   Yes Pb, Zn32248La Commanderie Mine, Le Temple, Deux-Sèvres, Nouvelle-Aquitaine, FranceLa Commanderie MineChauris et al. (1994) PMGFRA_243from pg 262: "The lead-zinc veins (230-210 Ma, K-Ar dating) seem to be the youngest and the antimony veins are of intermediate age"

SampleSource LocalityReference URL

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