"Southwest of Rennes on the D177. It is in the area surrounding the locality, in the alluvial sands of the Vilaine river and its tributaries, that one has the most chance of finding gold associated with other minerals such as cassiterite." [Belot, 1978]

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

11 valid minerals.

Detailed Mineral List:

ⓘ Anatase

Formula: TiO₂

Locality: Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

Description: Twinned (stacked) octahedrons.

References:

Devismes, P. (1978) Atlas photographique des minéraux d'alluvions. Mémoires du BRGM, no. 95.

ⓘ Cassiterite

Formula: SnO₂

Locality: Vilaine River alluvials, Redon, Ille-et-Vilaine, Brittany, France

References:

Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner. Guides Horay.

ⓘ 'Chlorite Group'

Locality: Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

References:

Devismes, P. (1978) Atlas photographique des minéraux d'alluvions. Mémoires du BRGM, no. 95.

ⓘ Goethite

Formula: Fe³⁺O(OH)

Locality: Bain-de-Bretagne, Redon, Ille-et-Vilaine, Brittany, France

References:

Christophe Boutry collectionIdentified by Christophe Boutry: Dealer/Collection Label

ⓘ Graphite

Formula: C

Locality: Tertre-Gris, Poligné, Redon, Ille-et-Vilaine, Brittany, France

References:

Lukas, Yann (1978) Roches et minéraux de Bretagne. Ouest France. p.1-33.

ⓘ Monazite-(Ce)

Formula: Ce(PO₄)

Localities:

Grand-Fougeray, Redon, Ille-et-Vilaine, Brittany, France
Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

ⓘ Monazite-(La)

Formula: La(PO₄)

Locality: Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

References:

Devismes, P. (1978) Atlas photographique des minéraux d'alluvions. Mémoires du BRGM, no. 95.

ⓘ Native Gold

Formula: Au

Locality: Vilaine River alluvials, Redon, Ille-et-Vilaine, Brittany, France

References:

Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner. Guides Horay.

ⓘ Orpiment

Formula: As₂S₃

Locality: Bain-de-Bretagne, Redon, Ille-et-Vilaine, Brittany, France

References:

Devismes, P. (1978) Atlas photographique des minéraux d'alluvions. Mémoires du BRGM, no. 95.

ⓘ Pyrite

Formula: FeS₂

Locality: Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

ⓘ Realgar

Formula: As₄S₄

Locality: Bain-de-Bretagne, Redon, Ille-et-Vilaine, Brittany, France

References:

Devismes, P. (1978) Atlas photographique des minéraux d'alluvions. Mémoires du BRGM, no. 95.

ⓘ Siderite

Formula: FeCO₃

Locality: Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

Description: Microcrystals (rhombohedrons).

References:

Devismes, P. (1978) Atlas photographique des minéraux d'alluvions. Mémoires du BRGM, no. 95.

Gallery:

Ce(PO₄)ⓘ Monazite-(Ce)

👁 trans.png

Monazite-(Ce)

Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

👁 trans.png

Monazite-(Ce)

Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

👁 trans.png

Monazite-(Ce)

Aron stream alluvial deposits, La Monnerie, Grand Fougeray, Redon, Ille-et-Vilaine, Brittany, France

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Gold	1.AA.05	Au
ⓘ	Graphite	1.CB.05a	C
Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Realgar	2.FA.15a	As₄S₄
ⓘ	Orpiment	2.FA.30	As₂S₃
Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
ⓘ	Cassiterite	4.DB.05	SnO₂
ⓘ	Anatase	4.DD.05	TiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Siderite	5.AB.05	FeCO₃
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Monazite-(Ce)	8.AD.50	Ce(PO₄)
ⓘ	Monazite-(La)	8.AD.50	La(PO₄)
Unclassified
ⓘ	'Chlorite Group'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Goethite	Fe³⁺O(OH)
C	Carbon
C	ⓘ Graphite	C
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Anatase	TiO₂
O	ⓘ Cassiterite	SnO₂
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Monazite-(Ce)	Ce(PO₄)
O	ⓘ Monazite-(La)	La(PO₄)
O	ⓘ Siderite	FeCO₃
P	Phosphorus
P	ⓘ Monazite-(Ce)	Ce(PO₄)
P	ⓘ Monazite-(La)	La(PO₄)
S	Sulfur
S	ⓘ Orpiment	As₂S₃
S	ⓘ Pyrite	FeS₂
S	ⓘ Realgar	As₄S₄
Ti	Titanium
Ti	ⓘ Anatase	TiO₂
Fe	Iron
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Siderite	FeCO₃
As	Arsenic
As	ⓘ Orpiment	As₂S₃
As	ⓘ Realgar	As₄S₄
Sn	Tin
Sn	ⓘ Cassiterite	SnO₂
La	Lanthanum
La	ⓘ Monazite-(La)	La(PO₄)
Ce	Cerium
Ce	ⓘ Monazite-(Ce)	Ce(PO₄)
Au	Gold
Au	ⓘ Native Gold	Au

Fossils

There are 24 fossil localities from the PaleoBioDB database within this region.

These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.

Occurrences

Youngest Fossil Listed

89.3 Ma (Late/Upper Cretaceous)

Oldest Fossil Listed

485 Ma (Cambrian)

Stratigraphic Units

Unit	No. Occurrences	Age
Traveusot	20	460.9 - 457.5 Ma (Ordovician)
Postolonnec	3	460.9 - 455.8 Ma (Ordovician)

Fossils from Region

Click here to show the list.

Accepted Name	Hierarchy	Age
👁 Image Eoharpes genus	Animalia : Arthropoda : Trilobita : Harpetida : Harpetidae : *Eoharpes*	485.4 - 458.4 Ma Paleozoic
👁 Image Chelonioidea superfamily	Animalia : Chordata : Reptilia : Testudines : Chelonioidea	93.5 - 89.3 Ma Late/Upper Cretaceous
👁 Image Prionocheilus verneuili species	Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Prionocheilus : *Prionocheilus verneuili*	460.9 - 455.8 Ma Ordovician
👁 Image Eoharpes guichenensis species	Animalia : Arthropoda : Trilobita : Harpetida : Harpetidae : Eoharpes : *Eoharpes guichenensis*	485.4 - 458.4 Ma Paleozoic
👁 Image Dionide mareki species	Animalia : Arthropoda : Trilobita : Asaphida : Dionididae : Dionide : *Dionide mareki*	485.4 - 458.4 Ma Paleozoic
👁 Image Eccoptochile mariana species	Animalia : Arthropoda : Trilobita : Phacopida : Cheiruridae : Eccoptochile : *Eccoptochile mariana*	485.4 - 458.4 Ma Paleozoic
👁 Image Colpocoryphe rouaulti species	Animalia : Arthropoda : Trilobita : Phacopida : Homalonotidae : Colpocoryphe : *Colpocoryphe rouaulti*	485.4 - 458.4 Ma Paleozoic
👁 Image Salterocoryphe salteri species	Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Salterocoryphe : *Salterocoryphe salteri*	485.4 - 458.4 Ma Paleozoic
👁 Image Neseuretus tristani species	Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Neseuretus : *Neseuretus tristani*	485.4 - 458.4 Ma Paleozoic
👁 Image Prionocheilus mendax species	Animalia : Arthropoda : Trilobita : Phacopida : Calymenidae : Prionocheilus : *Prionocheilus mendax*	485.4 - 458.4 Ma Paleozoic
👁 Image Zeliszkella (Zeliszkella) lapeyrei species	Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Zeliszkella : *Zeliszkella (Zeliszkella) lapeyrei*	485.4 - 458.4 Ma Paleozoic
👁 Image Guichenia dufouri species	Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Guichenia : *Guichenia dufouri*	485.4 - 458.4 Ma Paleozoic
👁 Image Eodalmanitina macrophtalma species	Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Eodalmanitina : *Eodalmanitina macrophtalma*	485.4 - 458.4 Ma Paleozoic
👁 Image Dalmanitina (Eodalmanitina) destombesi species	Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Dalmanitina : *Dalmanitina (Eodalmanitina) destombesi*	485.4 - 458.4 Ma Paleozoic
👁 Image Dalmanitina (Dalmanitina) subgenus	Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Dalmanitina : *Dalmanitina (Dalmanitina)*	485.4 - 458.4 Ma Paleozoic
👁 Image Dalmanitina (Dalmanitina) philippoti species	Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Dalmanitina : *Dalmanitina (Dalmanitina) philippoti*	460.9 - 455.8 Ma Ordovician
👁 Image Crozonaspis dujardini species	Animalia : Arthropoda : Trilobita : Phacopida : Dalmanitidae : Crozonaspis : *Crozonaspis dujardini*	460.9 - 455.8 Ma Ordovician

Fossil Localities

Click to show 5 fossil localities

France

Brittany
- Ille-et-Vilaine
  - Paleozoic🐚 La Saudrais
  - Paleozoic🐚 Traveusot
  - Late/Upper Cretaceous🐚 Vallagon
  - Redon
    - Bain-de-Bretagne
      - Paleozoic🐚 Bain de Bretagne
      - Ordovician🐚 Riadan

Other Databases

Wikipedia:	https://en.wikipedia.org/wiki/Arrondissement_of_Redon
Wikidata ID:	Q702180
GeoNames ID:	2984191

Localities in this Region

France

Brittany
- Ille-et-Vilaine
  - Redon
    - ⭔Bain-de-Bretagne
    - ⭔Bains-sur-Oust
    - ⭔Baulon
    - ⭔Bourg-des-Comptes
    - ⭔Bovel
    - ⭔Bruc-sur-Aff
    - ⭔Chanteloup
    - ⭔Comblessac
    - ⭔Crevin
    - ⭔Ercé-en-Lamée
    - ⭔Goven
    - ⭔Grand-Fougeray
    - ⭔Grand Fougeray
      - La Monnerie
        Aron stream alluvial deposits
    - ⭔Guichen
    - ⭔Guignen
    - ⭔Guipry-Messac
    - ⭔La Bosse-de-Bretagne
    - ⭔La Chapelle-Bouëxic
    - ⭔La Chapelle-de-Brain
    - ⭔La Couyère
    - ⭔La Dominelais
    - ⭔La Noë-Blanche
    - ⭔Lalleu
    - ⭔Langon
    - ⭔Lassy

France

Brittany
- Ille-et-Vilaine
  - Redon
    - ⭔Le Petit-Fougeray
    - ⭔Le Sel-de-Bretagne
    - ⭔Les Brulais
    - ⭔Lieuron
    - ⭔Lohéac
    - ⭔Loutehel
    - ⭔Mernel
    - ⭔Pancé
    - ⭔Pipriac
    - ⭔Pléchâtel
    - ⭔Poligné
      - Tertre-Gris
    - ⭔Redon
    - ⭔Renac
    - ⭔Saint-Ganton
    - ⭔Saint-Just
    - ⭔Saint-Malo-de-Phily
    - ⭔Saint-Séglin
    - ⭔Saint-Senoux
    - ⭔Saint-Sulpice-des-Landes
    - ⭔Sainte-Anne-sur-Vilaine
    - ⭔Sainte-Marie
    - ⭔Saulnières
    - ⭔Sixt-sur-Aff
    - ⭔Teillay
    - ⭔Tresbœuf
    - ⭔Val d'Anast
    - Vilaine River alluvials

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate

Saxo-Thuringian BeltOrogenic Belt

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

fr.wikipedia.org (n.d.) https://fr.wikipedia.org/wiki/Redon

Belot, Victor R. (1978) Guide des minéraux, coquillages et fossiles: où les trouver en France, comment les reconnaître et les collectionner. Guides Horay.

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