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Bestrée, Pointe du Raz, Plogoff, Quimper, Finistère, Brittany, Francei
Regional Level Types
Bestrée- not defined -
Pointe du Raz- not defined -
PlogoffCommune
QuimperArrondissement
FinistèreDepartment
BrittanyRegion
FranceCountry

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Latitude & Longitude (WGS84):
48° 2' 10'' North , 4° 42' 56'' West
Latitude & Longitude (decimal):
48.03616,-4.71574
GeoHash:
G#: gbs9k8wng
GRN:
N33W03
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Plogoff1,649 (2016)3.7km
Cléden-Cap-Sizun978 (2016)5.3km
Primelin744 (2016)8.0km
Goulien450 (2016)9.4km
Esquibien1,707 (2016)11.5km
Mindat Locality ID:
65356
Long-form identifier:
mindat:1:2:65356:8
GUID (UUID V4):
6f6d234a-32ca-4e83-8635-b84f8434750d


Quartz vein in pyritized migmatitic granite, near the South Armorican mylonitized zone at the contact leucogranite/gneisses and migmatitic granite.
Three phases of mineralization are known :
1) Berthierite and pyrrhotite in quartz, altered into stibnite, antimony, pyrite-marcasite
2) Alteration of the first deposition by Pb-Zn solutions, formation of zinkenite, sphalerite and sulphosalts
3) Late dissolution and formation of jamesonite, galena, pyrite framboids in chalcedony

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


15 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Antimony
Formula: Sb
ⓘ Arsenopyrite
Formula: FeAsS
Description: In quartz vein or in disseminated in granite.
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Feldspar Group'
ⓘ Fülöppite
Formula: Pb3Sb8S15
ⓘ Galena
Formula: PbS
Description: Small globules in chalcedony, rich in Sb.
ⓘ Jamesonite
Formula: Pb4FeSb6S14
ⓘ Marcasite
Formula: FeS2
ⓘ 'Melnikovite'
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Plagionite
Formula: Pb5Sb8S17
ⓘ Pyrite
Formula: FeS2
Description: - Automorph crystals in quartz, rich in As. - After pyrrhotite, with marcasite - Framboids in chalcedony
ⓘ Pyrrhotite
Formula: Fe1-xS
Description: Altered in pyrite-marcasite.
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Semseyite
Formula: Pb9Sb8S21
ⓘ Sphalerite
Formula: ZnS
ⓘ Stibnite
Formula: Sb2S3
ⓘ Zinkenite
Formula: Pb9Sb22S42

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘAntimony1.CA.05Sb
Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘStibnite2.DB.05Sb2S3
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘJamesonite2.HB.15Pb4FeSb6S14
ⓘFülöppite2.HC.10aPb3Sb8S15
ⓘPlagionite2.HC.10bPb5Sb8S17
ⓘSemseyite2.HC.10dPb9Sb8S21
ⓘZinkenite2.JB.35aPb9Sb22S42
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
Group 9 - Silicates
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Feldspar Group'-
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Melnikovite'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
OOxygen
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ FülöppitePb3Sb8S15
Sⓘ GalenaPbS
Sⓘ JamesonitePb4FeSb6S14
Sⓘ MarcasiteFeS2
Sⓘ PlagionitePb5Sb8S17
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SemseyitePb9Sb8S21
Sⓘ SphaleriteZnS
Sⓘ StibniteSb2S3
Sⓘ ZinkenitePb9Sb22S42
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ JamesonitePb4FeSb6S14
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
SbAntimony
Sbⓘ AntimonySb
Sbⓘ FülöppitePb3Sb8S15
Sbⓘ JamesonitePb4FeSb6S14
Sbⓘ PlagionitePb5Sb8S17
Sbⓘ SemseyitePb9Sb8S21
Sbⓘ StibniteSb2S3
Sbⓘ ZinkenitePb9Sb22S42
PbLead
Pbⓘ FülöppitePb3Sb8S15
Pbⓘ GalenaPbS
Pbⓘ JamesonitePb4FeSb6S14
Pbⓘ PlagionitePb5Sb8S17
Pbⓘ SemseyitePb9Sb8S21
Pbⓘ ZinkenitePb9Sb22S42

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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

References

Moëlo Y., Fouquet Y., Laforêt C., Chauris L. (1978): L’indice plombo-antimonifère du Bestrée (Cap Sizun, Finistère). Bull. Minéral. 101, 363–367.
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