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Salt marsh, Saint-Malo, Ille-et-Vilaine, Brittany, Francei
Regional Level Types
Salt marsh- not defined -
Saint-Malo- not defined -

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Latitude & Longitude (WGS84): 48° 39' 50'' North , 1° 59' 38'' West
Latitude & Longitude (decimal): 48.66403,-1.99404
GeoHash:G#: gbwsfe5bx
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
Saint-Malo50,676 (2016)2.3km
Dinard11,993 (2016)6.1km
Saint-Coulomb2,398 (2016)6.2km
La Richardais2,207 (2016)7.1km
Saint-Méloir-des-Ondes3,289 (2016)7.2km

Gley locality

Regions containing this locality

Eurasian PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

2 valid minerals.

Detailed Mineral List:

Formula: Fe3+6O4(OH)8[CO3] · 3H2O
Reference: Génin, J. M., Mills, S. J., Christy, A. G., Guérin, O., Herbillon, A. J., Kuzmann, E., ... & Upadhyay, C. (2014). Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized'green rust'mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.
Formula: Fe2+2Fe3+4O2(OH)10CO3·3H2O
Reference: Génin, J. M., Mills, S. J., Christy, A. G., Guérin, O., Herbillon, A. J., Kuzmann, E., ... & Upadhyay, C. (2014). Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized'green rust'mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Unclassified Minerals, Rocks, etc.
Mössbauerite-Fe3+6O4(OH)8[CO3] · 3H2O

List of minerals arranged by Dana 8th Edition classification

Unclassified Minerals, Mixtures, etc.
Mössbauerite-Fe3+6O4(OH)8[CO3] · 3H2O

List of minerals for each chemical element

H MössbaueriteFe63+O4(OH)8[CO3] · 3H2O
H TrébeurdeniteFe22+Fe43+O2(OH)10CO3·3H2O
C MössbaueriteFe63+O4(OH)8[CO3] · 3H2O
C TrébeurdeniteFe22+Fe43+O2(OH)10CO3·3H2O
O MössbaueriteFe63+O4(OH)8[CO3] · 3H2O
O TrébeurdeniteFe22+Fe43+O2(OH)10CO3·3H2O
Fe MössbaueriteFe63+O4(OH)8[CO3] · 3H2O
Fe TrébeurdeniteFe22+Fe43+O2(OH)10CO3·3H2O

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

541 - 2500 Ma

ID: 3139605
Proterozoic migmatite/anatexite

Age: Proterozoic (541 - 2500 Ma)

Description: high grade metamorphic

Lithology: Migmatite/anatexite

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]

541 - 1000 Ma

ID: 3189737
Neoproterozoic tectonic rocks

Age: Neoproterozoic (541 - 1000 Ma)

Lithology: Deformed sedimentary, metamorphic, and 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, used under Creative Commons Attribution 4.0 License


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Génin, J.M., Mills, S.J., Christy, A.G., Guérin, O., Herbillon, A.J., Kuzmann, E., ... and Upadhyay, C. (2014) Mössbauerite, Fe3+ 6O4 (OH) 8 [CO3]· 3H2O, the fully oxidized 'green rust' mineral from Mont Saint-Michel Bay, France. Mineralogical Magazine, 78(2), 447-465.

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