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Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, Francei
Regional Level Types
Ménez Goaillou pegmatite quarriesGroup of Quarries
CorayCommune
ChâteaulinArrondissement
FinistèreDepartment
BrittanyRegion
FranceCountry

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PhotosMapsSearch
00575130017272077487465.jpg
Beryl

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
05158130017272077488187.jpg
Beryl

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
01379080017412948094001.jpg
Beryl, etc.

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
00575130017272077487465.jpg
Beryl

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
05158130017272077488187.jpg
Beryl

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
01379080017412948094001.jpg
Beryl, etc.

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
00575130017272077487465.jpg
Beryl

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
05158130017272077488187.jpg
Beryl

Ménez Goaillou pegmatite quarries, Coray, Châteaulin, Finistère, Brittany, France
Latitude & Longitude (WGS84):
48° 5' 40'' North , 3° 50' 52'' West
Latitude & Longitude (decimal):
48.09472,-3.84778
GeoHash:
G#: gbt387qhh
GRN:
N33W02
Type:
Group of Quarries
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Trégourez999 (2016)1.5km
Coray1,704 (2016)4.1km
Leuhan795 (2016)4.8km
Laz735 (2016)4.9km
Langolen725 (2016)5.7km
Mindat Locality ID:
49953
Long-form identifier:
mindat:1:2:49953:5
GUID (UUID V4):
0


Aplitic granite cupola, with disseminated arsenopyrite, intruded in Brioverian schists.
Numerous mineralized quartz veins (pneumatolytic-hydrothermal quartz-beryl-molybdenite veins) with greisens cut the granite.

Presence of cleavable quartz.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


21 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:

ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Colour: blue
Description: Crystals up to 5 centimeters.
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Bertrandite
Formula: Be4(Si2O7)(OH)2
Description: Geodes with small (1-2mm) crystals replacing beryl in veins that are rich in micas.
ⓘ Beryl
Formula: Be3Al2(Si6O18)
Colour: White, pale green.
Description: Radiating groups of crystals, up to 10 centimeters.
ⓘ Beryl var. Aquamarine
Formula: Be3Al2Si6O18
ⓘ Bismuthinite
Formula: Bi2S3
ⓘ Cassiterite
Formula: SnO2
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Covellite
Formula: CuS
ⓘ Galena
Formula: PbS
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Graphite
Formula: C
ⓘ Mackinawite
Formula: FeS
ⓘ Marcasite
Formula: FeS2
ⓘ Molybdenite
Formula: MoS2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Bismuth
Formula: Bi
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Scorodite
Formula: Fe3+AsO4 · 2H2O
ⓘ Sphalerite
Formula: ZnS
ⓘ Sphalerite var. Marmatite
Formula: (Zn,Fe)S
ⓘ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Bismuth1.CA.05Bi
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘvar. Marmatite2.CB.05a(Zn,Fe)S
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMackinawite2.CC.25FeS
ⓘGalena2.CD.10PbS
ⓘBismuthinite2.DB.05Bi2S3
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘ'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘQuartz4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
ⓘRutile4.DB.05TiO2
Group 8 - Phosphates, Arsenates and Vanadates
ⓘScorodite8.CD.10Fe3+AsO4 · 2H2O
Group 9 - Silicates
ⓘBertrandite9.BD.05Be4(Si2O7)(OH)2
ⓘBeryl
var. Aquamarine		9.CJ.05Be3Al2Si6O18
ⓘ9.CJ.05Be3Al2(Si6O18)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ BertranditeBe4(Si2O7)(OH)2
Hⓘ GoethiteFe3+O(OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ ScoroditeFe3+AsO4 · 2H2O
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
BeBeryllium
Beⓘ Beryl var. AquamarineBe3Al2Si6O18
Beⓘ BertranditeBe4(Si2O7)(OH)2
Beⓘ BerylBe3Al2(Si6O18)
CCarbon
Cⓘ GraphiteC
OOxygen
Oⓘ Beryl var. AquamarineBe3Al2Si6O18
Oⓘ BertranditeBe4(Si2O7)(OH)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ CassiteriteSnO2
Oⓘ GoethiteFe3+O(OH)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ ScoroditeFe3+AsO4 · 2H2O
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
AlAluminium
Alⓘ Beryl var. AquamarineBe3Al2Si6O18
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ Beryl var. AquamarineBe3Al2Si6O18
Siⓘ BertranditeBe4(Si2O7)(OH)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ BismuthiniteBi2S3
Sⓘ ChalcopyriteCuFeS2
Sⓘ CovelliteCuS
Sⓘ GalenaPbS
Sⓘ MackinawiteFeS
Sⓘ MarcasiteFeS2
Sⓘ MolybdeniteMoS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sⓘ Sphalerite var. Marmatite(Zn,Fe)S
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ RutileTiO2
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ ChalcopyriteCuFeS2
Feⓘ GoethiteFe3+O(OH)
Feⓘ MackinawiteFeS
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ ScoroditeFe3+AsO4 · 2H2O
Feⓘ Sphalerite var. Marmatite(Zn,Fe)S
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CovelliteCuS
Cuⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
ZnZinc
Znⓘ SphaleriteZnS
Znⓘ Sphalerite var. Marmatite(Zn,Fe)S
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ ScoroditeFe3+AsO4 · 2H2O
Asⓘ Tennantite SubgroupCu6(Cu4C22+)As4S12S
MoMolybdenum
Moⓘ MolybdeniteMoS2
SnTin
Snⓘ CassiteriteSnO2
PbLead
Pbⓘ GalenaPbS
BiBismuth
Biⓘ Native BismuthBi
Biⓘ BismuthiniteBi2S3

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

Chauris, L., Chantret, F., and Le Bail, F. (1959) Sur la présence de bertrandite au Menez Gouaillou en Coray (Finistère). 84° Congrès National des Sociétés savantes.
Chauris, L. and Le Bail, F. (1959) Le massif de granulite du Menez Gouaillou en Coray (Finistère). Bulletin de la Société Géologique et Minéralogique de Bretagne, 2(1).
Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner. Guides Horay.
Lukas, Yann (1978) Roches et minéraux de Bretagne. Ouest France. p.1-33.+ p. 18, 20, 30
Martin, J. (1981) Les Minéraux du Morbihan. Monde & Minéraux, 41, 4-9.
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