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:
Quistiav (Quistiave), Guern, Morbihan, Brittany, France

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

mindat Locality ID: 1726
mindat URL: http://www.mindat.org/loc-1726.html

Tectonic Settings:

Total number of sublocalities beneath "Quistiav (Quistiave), Guern, Morbihan, Brittany, France": 0
Total number of bottom-level sublocalities: 0

Latitude: 48°1'29"N
Longitude: 3°6'45"W
Decimal Degree (lat, lon): 48.024722222222,-3.1125
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: Ag Al As Ba Bi Ca Cu Fe H K Mg Ni O P Pb S Sb Se Si Sn U Zn 

Elements from minerals reported directly at this locality: Ag Al As Ba Bi Ca Cu Fe H K Mg Ni O P Pb S Sb Se Si Sn U Zn 

Structural Groups for minerals in this locality: 
AcanthiteAmorphousArsenicArsenopyriteAutuniteBaryteBournoniteChalcopyriteChalcostibiteCoquimbite
CorundumCovelliteCubaniteDiasporeDigeniteFluoriteJohanniteKobelliteMarcasiteMeneghinite
Meta-autuniteNatroautuniteNickelineNoneNot in a structural groupPhosphuranylitePolybasitePyriteQuartzRocksalt
SchoepiteSphaleriteSpinelStanniteStibniteWurtziteZircon

52 IMA Minerals at location:
Acanthite  (*)Aikinite  (*)Anglesite  (*)Arsenopyrite  (*)Autunite  (*)
Bassetite  (*)Bismuth  (*)Bismuthinite  (*)Bournonite  (*)Chalcopyrite  (*)
Chernikovite  (*)Coffinite  (*)Cosalite  (*)Covellite  (*)Cubanite  (*)
Curite  (*)Dewindtite  (*)Digenite  (*)Emplectite  (*)Fourmarierite  (*)
Galena  (*)Goethite  (*)Greigite  (*)Hematite  (*)Johannite  (*)
Kasolite  (*)Kobellite  (*)Mackinawite  (*)Marcasite  (*)Matildite  (*)
Meta-autunite  (*)Metatorbernite  (*)Metauranocircite-I  (*)Naumannite  (*)Opal  (*)
Paracoquimbite  (*)Parsonsite  (*)Pearceite  (*)Phosphuranylite  (*)Pyrite  (*)
Pyrrhotite  (*)Quartz  (*)Renardite  (*)Sabugalite  (*)Sklodowskite  (*)
Sphalerite  (*)Stannite  (*)Torbernite  (*)Uraninite  (*)Uranocircite-II  (*)
Uranophane-α  (*)Uranopilite  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Acanthite  (*)AcanthiteAg2S29021002793
Aikinite  (*)MeneghiniteCuPbBiS32302100315
Anglesite  (*)BarytePb(SO4)23021002734
Arsenopyrite  (*)ArsenopyriteFeAsS29021009052
Autunite  (*)AutuniteCa(UO2)2(PO4)2·10-12H2O29027001272
Bassetite  (*)NoneFe2+(UO2)2(PO4)2(H2O)10290270051
Bismuth  (*)ArsenicBi29021001966
Bismuthinite  (*)StibniteBi2S329021001935
Bournonite  (*)BournoniteCuPbSbS323021001089
Chalcopyrite  (*)ChalcopyriteCuFeS2290210027198
Chernikovite  (*)Natroautunite(H3O)(UO2)(PO4)·3H2O290270021
Coffinite  (*)ZirconU(SiO4)·nH2O2902700566
Cosalite  (*)NonePb2Bi2S52302100344
Covellite  (*)CovelliteCuS29021004165
Cubanite  (*)Cubanite WurtziteCuFe2S32902100802
Curite  (*)NonePb3+x[(UO2)4O4+x(OH)3-x]2·2H2O290210051
Dewindtite  (*)PhosphuranyliteH2Pb3(UO2)6O4(PO4)4·12H2O290210082
Digenite  (*)DigeniteCu1.8S29021001027
Emplectite  (*)ChalcostibiteCuBiS22902100246
Fourmarierite  (*)SchoepitePb1-xO3-2x(UO2)4(OH)4+2x·4H2O290210061
Galena  (*)RocksaltPbS230210024243
Goethite  (*)DiasporeFeO(OH)29021007437
Greigite  (*)SpinelFe2+Fe3+2S4290210062
Hematite  (*)CorundumFe2O3290210014640
Johannite  (*)JohanniteCu(UO2)2(SO4)2(OH)2·8H2O290270069
Kasolite  (*)NonePb(UO2)(SiO4)·H2O2902100198
Kobellite  (*)KobellitePb11(Cu,Fe)2(Bi,Sb)15S35230210087
Mackinawite  (*)None(Fe,Ni)1+xS (x = 0-0.07)2902100451
Marcasite  (*)MarcasiteFeS229021005674
Matildite  (*)NoneAgBiS22902100252
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O2902700388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O2902700443
Metauranocircite-I  (*)NoneBa(UO2)2(PO4)2·6H2O290270038
Naumannite  (*)Not in a structural groupAg2Se2902100192
Opal  (*)AmorphousSiO2·nH2O29021002994
Paracoquimbite  (*)CoquimbiteFe3+4(SO4)6(H2O)12·6H2O290210030
Parsonsite  (*)NonePb2(UO2)(PO4)2290210063
Pearceite  (*)Polybasite[Ag9CuS4][(Ag,Cu)6(As,Sb)2S7]2902100249
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O2902700182
Pyrite  (*)PyriteFeS2290210039462
Pyrrhotite  (*)NickelineFe7S829021009056
Quartz  (*)QuartzSiO2290210061156
Renardite  (*)NonePb(UO2)4(PO4)2(OH)4·7H2O29021007
Sabugalite  (*)NoneHAl(UO2)4(PO4)4·16H2O290270087
Sklodowskite  (*)NoneMg(UO2)2(SiO3OH)2·6H2O290270056
Sphalerite  (*)SphaleriteZnS230210021482
Stannite  (*)Stannite SphaleriteCu2FeSnS42902100668
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O29027001059
Uraninite  (*)FluoriteUO229027002718
Uranocircite-II  (*)NoneBa(UO2)2(PO4)2·10H2O290270089
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O2902700890
Uranopilite  (*)None(UO2)6(SO4)O2(OH)6·14H2O290270094


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Giersdorf_00000655The Quistiav locality is found within the Pontivy region of France. It is responsible for producing 400 tons of Uranium metal. Uranium in the Pontivy district is usually found intragranitic, the granite is cut by a system of transverse mineralized fractures, preferentially located on the northern part of the Massif. It is within the fractures that the Uranium can be found.
Giersdorf_00000655aThe Quistiav locality is found within the Pontivy region of France. It is responsible for producing 400 tons of Uranium metal. Uranium in the Pontivy district is usually found intragranitic, the granite is cut by a system of transverse mineralized fractures, preferentially located on the northern part of the Massif. It is within the fractures that the Uranium can be found.


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_00000655290270290-270U-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.     U1726Quistiav (Quistiave), Guern, Morbihan, Brittany, FranceQuistiavChauris 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_00000655a230210230-210K-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.     Pb, Zn1726Quistiav (Quistiave), Guern, Morbihan, Brittany, FranceQuistiavChauris 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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