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Kerroc'h, Guern, Morbihan, Brittany, Francei
Regional Level Types
Kerroc'h- not defined -
Guern- not defined -
MorbihanDepartment
BrittanyRegion
FranceCountry

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Key
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Latitude & Longitude (WGS84): 48° 2' 2'' North , 3° 6' 28'' West
Latitude & Longitude (decimal): 48.03413,-3.10803
GeoHash:G#: gbtc322g1
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Guern1,500 (2016)1.3km
Melrand1,631 (2016)6.0km
Bieuzy761 (2016)6.4km
Malguénac1,791 (2016)6.6km
Persquen379 (2016)6.6km


Quartz vein in granite (microcrystalline ocher and red quartz).
Located NE of Kerroc'h hamlet, near D1 road.

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Detailed Mineral List:

Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Chalcopyrite
Formula: CuFeS2
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Coffinite
Formula: U(SiO4) · nH2O
Description: Replaces pitchblende.
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Galena
Formula: PbS
Description: Replaces pitchblende along cracks. Forms films on pyrite.
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Goethite
Formula: α-Fe3+O(OH)
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
'Gummite'
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Hematite
Formula: Fe2O3
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Marcasite
Formula: FeS2
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Description: Yellow-grey to greenish crusts, on pitchblende and quartz.
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Ningyoite
Formula: CaU(PO4)2 · 1-2H2O
Description: Bluish-green or greenn crusts, at the contact between quartz and pitchblende.
Reference: Le Règne Minéral, Hors Série IV, 1998
Pyrite
Formula: FeS2
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Quartz
Formula: SiO2
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Quartz var: Chalcedony
Formula: SiO2
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Quartz var: Jasper
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Sabugalite
Formula: HAl(UO2)4(PO4)4 · 16H2O
Reference: Le Règne Minéral, Hors Série IV, 1998
Sphalerite
Formula: ZnS
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Szomolnokite
Formula: FeSO4 · H2O
'Tennantite-Tetrahedrite Series'
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Uraninite
Formula: UO2
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
Uraninite var: Pitchblende
Formula: UO2
Reference: R. Pierrot, L. Chauris, C. Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
Uraninite4.DL.05UO2
var: Pitchblende4.DL.05UO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Szomolnokite7.CB.05FeSO4 · H2O
Group 8 - Phosphates, Arsenates and Vanadates
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Ningyoite8.CJ.85CaU(PO4)2 · 1-2H2O
Sabugalite8.EB.55HAl(UO2)4(PO4)4 · 16H2O
Group 9 - Silicates
Coffinite9.AD.30U(SiO4) · nH2O
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Unclassified Minerals, Rocks, etc.
'Gummite'-
'Tennantite-Tetrahedrite Series'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Szomolnokite29.6.2.2FeSO4 · H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Autunite40.2a.1.1Ca(UO2)2(PO4)2 · 11H2O
Sabugalite40.2a.24.1HAl(UO2)4(PO4)4 · 16H2O
(AB)5(XO4)2·xH2O
Ningyoite40.4.8.1CaU(PO4)2 · 1-2H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Coffinite51.5.2.4U(SiO4) · nH2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Gummite'-
Quartz
var: Chalcedony
-SiO2
var: Jasper-SiO2
'Tennantite-Tetrahedrite Series'-
Uraninite
var: Pitchblende
-UO2

List of minerals for each chemical element

HHydrogen
H NingyoiteCaU(PO4)2 · 1-2H2O
H SabugaliteHAl(UO2)4(PO4)4 · 16H2O
H AutuniteCa(UO2)2(PO4)2 · 11H2O
H CoffiniteU(SiO4) · nH2O
H Goethiteα-Fe3+O(OH)
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H SzomolnokiteFeSO4 · H2O
OOxygen
O NingyoiteCaU(PO4)2 · 1-2H2O
O SabugaliteHAl(UO2)4(PO4)4 · 16H2O
O QuartzSiO2
O HematiteFe2O3
O AutuniteCa(UO2)2(PO4)2 · 11H2O
O CoffiniteU(SiO4) · nH2O
O Goethiteα-Fe3+O(OH)
O Uraninite (var: Pitchblende)UO2
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O Quartz (var: Chalcedony)SiO2
O SzomolnokiteFeSO4 · H2O
O UraniniteUO2
NaSodium
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al SabugaliteHAl(UO2)4(PO4)4 · 16H2O
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Si QuartzSiO2
Si CoffiniteU(SiO4) · nH2O
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si Quartz (var: Chalcedony)SiO2
PPhosphorus
P NingyoiteCaU(PO4)2 · 1-2H2O
P SabugaliteHAl(UO2)4(PO4)4 · 16H2O
P AutuniteCa(UO2)2(PO4)2 · 11H2O
SSulfur
S SphaleriteZnS
S GalenaPbS
S PyriteFeS2
S MarcasiteFeS2
S ChalcopyriteCuFeS2
S SzomolnokiteFeSO4 · H2O
CaCalcium
Ca NingyoiteCaU(PO4)2 · 1-2H2O
Ca AutuniteCa(UO2)2(PO4)2 · 11H2O
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
FeIron
Fe HematiteFe2O3
Fe PyriteFeS2
Fe MarcasiteFeS2
Fe ChalcopyriteCuFeS2
Fe Goethiteα-Fe3+O(OH)
Fe SzomolnokiteFeSO4 · H2O
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
CeCerium
Ce NingyoiteCaU(PO4)2 · 1-2H2O
PbLead
Pb GalenaPbS
UUranium
U NingyoiteCaU(PO4)2 · 1-2H2O
U SabugaliteHAl(UO2)4(PO4)4 · 16H2O
U AutuniteCa(UO2)2(PO4)2 · 11H2O
U CoffiniteU(SiO4) · nH2O
U Uraninite (var: Pitchblende)UO2
U UraniniteUO2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Late Carboniferous
298.9 - 323.2 Ma



ID: 3136461
peraluminous syn orogenic plutonism

Age: Pennsylvanian (298.9 - 323.2 Ma)

Lithology: Granite

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Carboniferous
298.9 - 358.9 Ma



ID: 3185926
Paleozoic intrusive rocks

Age: Carboniferous (298.9 - 358.9 Ma)

Lithology: Intrusive igneous rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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