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Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, Francei
Regional Level Types
Gwernavalou QuarryQuarry
TrémargatCommune
GuingampArrondissement
Côtes-d'ArmorDepartment
BrittanyRegion
FranceCountry

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PhotosMapsSearch
07825700017271983745848.jpg
Opal-AN

Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France
07825700017271983745848.jpg
Opal-AN

Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France
07825700017271983745848.jpg
Opal-AN

Gwernavalou Quarry, Trémargat, Guingamp, Côtes-d'Armor, Brittany, France
Latitude & Longitude (WGS84):
48° 19' 26'' North , 3° 16' 40'' West
Latitude & Longitude (decimal):
48.32407,-3.27796
GeoHash:
G#: gbtdvmjh4
GRN:
N33W02
Type:
Quarry
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Trémargat178 (2016)1.2km
Kergrist-Moëlou727 (2016)3.4km
Peumerit-Quintin156 (2016)4.2km
Lanrivain547 (2016)5.3km
Plounévez-Quintin1,101 (2016)5.6km
Mindat Locality ID:
42091
Long-form identifier:
mindat:1:2:42091:5
GUID (UUID V4):
0


Abandoned quarry.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


17 valid minerals.

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Autunite
Formula: Ca(UO2)2(PO4)2 · 10-12H2O
ⓘ Bavenite
Formula: Ca4Be2Al2Si9O26(OH)2
ⓘ Bazzite
Formula: Be3Sc2(Si6O18)
✪ Bertrandite
Formula: Be4(Si2O7)(OH)2
Habit: Pseudo-hexagonal prism
Colour: Colorless
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ 'Chlorite Group'
ⓘ 'K Feldspar'
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
ⓘ 'Lepidolite'
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Damourite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ Orthoclase
Formula: K(AlSi3O8)
ⓘ Phenakite
Formula: Be2SiO4
ⓘ Quartz
Formula: SiO2
ⓘ Quartz var. Rutilated Quartz
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Rutile var. Ilmenorutile
Formula: (Ti,Nb)O2
✪ Scheelite
Formula: Ca(WO4)
Habit: Octaedre
Colour: Yellow to brown
ⓘ Spodumene
Formula: LiAlSi2O6
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
ⓘ 'Wolframite Group'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘvar. Rutilated Quartz4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘRutile
var. Ilmenorutile		4.DB.05(Ti,Nb)O2
ⓘ4.DB.05TiO2
ⓘ'Wolframite Group'4.DB.30 va
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘAutunite8.EB.05Ca(UO2)2(PO4)2 · 10-12H2O
ⓘTorbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Group 9 - Silicates
ⓘPhenakite9.AA.05Be2SiO4
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘBertrandite9.BD.05Be4(Si2O7)(OH)2
ⓘBazzite9.CJ.05Be3Sc2(Si6O18)
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘSpodumene9.DA.30LiAlSi2O6
ⓘBavenite9.DF.25Ca4Be2Al2Si9O26(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Damourite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'K Feldspar
var. Adularia'		-KAlSi3O8
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Chlorite Group'-
ⓘ'Lepidolite'-
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'K Feldspar'-

List of minerals for each chemical element

HHydrogen
Hⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Hⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Hⓘ BertranditeBe4(Si2O7)(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ OpalSiO2 · nH2O
Hⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Hⓘ Muscovite var. DamouriteKAl2(AlSi3O10)(OH)2
LiLithium
Liⓘ SpodumeneLiAlSi2O6
BeBeryllium
Beⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Beⓘ BazziteBe3Sc2(Si6O18)
Beⓘ BertranditeBe4(Si2O7)(OH)2
Beⓘ BerylBe3Al2(Si6O18)
Beⓘ PhenakiteBe2SiO4
BBoron
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
OOxygen
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Oⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Oⓘ BazziteBe3Sc2(Si6O18)
Oⓘ BertranditeBe4(Si2O7)(OH)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ Rutile var. Ilmenorutile(Ti,Nb)O2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ OpalSiO2 · nH2O
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ PhenakiteBe2SiO4
Oⓘ QuartzSiO2
Oⓘ Quartz var. Rutilated QuartzSiO2
Oⓘ RutileTiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ SpodumeneLiAlSi2O6
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ Muscovite var. DamouriteKAl2(AlSi3O10)(OH)2
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ OrthoclaseK(AlSi3O8)
Alⓘ SpodumeneLiAlSi2O6
Alⓘ Muscovite var. DamouriteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Siⓘ BazziteBe3Sc2(Si6O18)
Siⓘ BertranditeBe4(Si2O7)(OH)2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ OpalSiO2 · nH2O
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ PhenakiteBe2SiO4
Siⓘ QuartzSiO2
Siⓘ Quartz var. Rutilated QuartzSiO2
Siⓘ SpodumeneLiAlSi2O6
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Muscovite var. DamouriteKAl2(AlSi3O10)(OH)2
PPhosphorus
Pⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Pⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ OrthoclaseK(AlSi3O8)
Kⓘ Muscovite var. DamouriteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Caⓘ BaveniteCa4Be2Al2Si9O26(OH)2
Caⓘ ScheeliteCa(WO4)
Caⓘ TitaniteCaTi(SiO4)O
ScScandium
Scⓘ BazziteBe3Sc2(Si6O18)
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ Rutile var. Ilmenorutile(Ti,Nb)O2
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTi(SiO4)O
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
CuCopper
Cuⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O
NbNiobium
Nbⓘ Rutile var. Ilmenorutile(Ti,Nb)O2
WTungsten
Wⓘ ScheeliteCa(WO4)
UUranium
Uⓘ AutuniteCa(UO2)2(PO4)2 · 10-12H2O
Uⓘ TorberniteCu(UO2)2(PO4)2 · 12H2O

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

Germain, C., Guillou, A. (1985) Minéraux des druses du granite de Quintin. Le Cahier des Micromonteurs 8(2), 3-7
Germain C., Guillou A. (1988): Nouvelles découvertes minéralogiques dans les druses du granite de la carrière de Gwernavalou (Côtes d'Armor), Le Cahier des Micromonteurs, n°3, 3-7.
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