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:
Kerguillo Quarry, Guilers, Finistère, Brittany, France


mindat Locality ID: 12889
mindat URL: http://www.mindat.org/loc-12889.html

Tectonic Settings:

Total number of sublocalities beneath "Kerguillo Quarry, Guilers, Finistère, Brittany, France": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0
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: Ca Cu Fe H K O P Pb S Si U 

Elements from minerals reported directly at this locality: Ca Cu Fe H K O P Pb S Si U 

Structural Groups for minerals in this locality: 
AutuniteChalcopyriteCorundumDiasporeFluoriteMarcasiteMeta-autuniteNonePhosphuranylitePyrite
QuartzRocksalt

16 IMA Minerals at location:
Autunite  (*)Chalcopyrite  (*)Dewindtite  (*)Galena  (*)Goethite  (*)
Hematite  (*)Marcasite  (*)Meta-autunite  (*)Metatorbernite  (*)Parsonsite  (*)
Phosphuranylite  (*)Pyrite  (*)Quartz  (*)Torbernite  (*)Uraninite  (*)
Uranophane-α  (*)
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)2·10-12H2O01272
Chalcopyrite  (*)ChalcopyriteCuFeS2027198
Dewindtite  (*)PhosphuranyliteH2Pb3(UO2)6O4(PO4)4·12H2O082
Galena  (*)RocksaltPbS024243
Goethite  (*)DiasporeFeO(OH)07437
Hematite  (*)CorundumFe2O3014640
Marcasite  (*)MarcasiteFeS205674
Meta-autunite  (*)Meta-autuniteCa(UO2)2(PO4)2·6H2O0388
Metatorbernite  (*)NoneCu(UO2)2(PO4)2·8H2O0443
Parsonsite  (*)NonePb2(UO2)(PO4)2063
Phosphuranylite  (*)PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4·8H2O0182
Pyrite  (*)PyriteFeS2039462
Quartz  (*)QuartzSiO2061156
Torbernite  (*)NoneCu(UO2)2(PO4)2·12H2O01059
Uraninite  (*)FluoriteUO202718
Uranophane-α  (*)NoneCa(UO2)2(SiO3OH)2·5H2O0890


No ages have been assigned to this locality yet.
SampleSource LocalityReference URL

All locality data graciously provided by mindat.org

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