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Manganese deposit, Romanèche-Thorens, La Chapelle-de-Guinchay, Saône-et-Loire, Bourgogne-Franche-Comté, France

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Latitude & Longitude (WGS84): 46° 11' 20'' North , 4° 44' 0'' East
Latitude & Longitude (decimal): 46.18889,4.73361
GeoHash:G#: u05qg8qvv
Locality type:Deposit
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical names associated with this locality:Burgandy; Franche-Comté


Located about 5 km NE of Beaujeu and 10 km SW of Mâcon.

This is the biggest manganese deposit in France, composed of two veins in a granite and several stratiform deposits in Triassic/Liassic sediments. Discovered in 1750, it was operated under the village by many shafts and adits! The modern mine started in 1920 and closed in 1957 when the upper parts of the deposit (up to 115 m depth) were exhausted. Today, there is almost no visible traces of the mining past of the village...

Total production: 400,000 tons MnO2.

The coordinates are from the city hall.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


8 valid minerals. 2 (TL) - type locality of valid minerals.

Detailed Mineral List:

Arseniosiderite (TL)
Formula: Ca2Fe3+3(AsO4)3O2 · 3H2O
Habit: Aggregates of fibrous crystals.
Colour: Brown
Fluorescence: None
Description: Forms thick crusts of parallel-fiber to radial-fibrous masses
Reference: Annal. Mines (1842) 4th. series: 2: 343.; Palache, C., Berman, H., and Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 954.; Kingsbury, A.W.G. and Hartley, J. (1957) New occurrences of arseniosiderite. Mineralogical Magazine, vol. 31, n° 237, 499-500.
Baryte
Formula: BaSO4
Description: Late stage colorless to blue barite crystals.
Reference: Aufschluss 1974(3), 193-197
Calcite
Formula: CaCO3
Reference: "Les minéraux, leurs gisements, leurs associations", P. Bariand, F. Cesbron et J. Geffroy (1977), Editions Minéraux et Fossiles,
Fluorite
Formula: CaF2
Reference: Aufschluss 1974(3), 193-197
Goethite
Formula: α-Fe3+O(OH)
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 954.
Hematite
Formula: Fe2O3
Reference: P Haas collection
'commodity:Manganese'
Formula: Mn
Reference:  
'Psilomelane'
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 954.
Quartz
Formula: SiO2
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 954; Bariand, P., F. Cesbron and J. Geffroy (1977), "Les minéraux, leurs gisements, leurs associations," Editions Minéraux et Fossiles.
Romanèchite (TL)
Formula: (Ba,H2O)2(Mn4+,Mn3+)5O10
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 954; Lapis (1989): 1: 6.

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Goethite'4.00.α-Fe3+O(OH)
'Hematite'4.CB.05Fe2O3
'Quartz'4.DA.05SiO2
'Romanèchite' (TL)4.DK.10(Ba,H2O)2(Mn4+,Mn3+)5O10
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
'Arseniosiderite' (TL)8.DH.30Ca2Fe3+3(AsO4)3O2 · 3H2O
Unclassified Minerals, Rocks, etc.
'Psilomelane'-

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB8X16
Romanèchite (TL)7.9.2.1(Ba,H2O)2(Mn4+,Mn3+)5O10
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)3Zq·xH2O
Arseniosiderite (TL)42.8.4.3Ca2Fe3+3(AsO4)3O2 · 3H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Psilomelane'-

List of minerals for each chemical element

HHydrogen
H ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
H Goethiteα-Fe3+O(OH)
H Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
CCarbon
C CalciteCaCO3
OOxygen
O ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
O BaryteBaSO4
O CalciteCaCO3
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O QuartzSiO2
O Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
FFluorine
F FluoriteCaF2
SiSilicon
Si QuartzSiO2
SSulfur
S BaryteBaSO4
CaCalcium
Ca ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
Ca CalciteCaCO3
Ca FluoriteCaF2
MnManganese
Mn Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10
FeIron
Fe ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
AsArsenic
As ArseniosideriteCa2Fe33+(AsO4)3O2 · 3H2O
BaBarium
Ba BaryteBaSO4
Ba Romanèchite(Ba,H2O)2(Mn4+,Mn3+)5O10

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

Neogene
2.588 - 23.03 Ma



ID: 3185586
Cenozoic sedimentary rocks

Age: Neogene (2.588 - 23.03 Ma)

Comments: Rhone Trough

Lithology: Sedimentary 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]

Late Carboniferous
298.9 - 323.2 Ma



ID: 3157493
calc-alkaline 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]

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Palache, C., Berman, H., and Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 954.
Kingsbury, A.W.G. and Hartley, J. (1957) New occurrences of arseniosiderite. Mineralogical Magazine, vol. 31, n° 237, 499-500 (referring to arseniosiderite from the type locality.)
Bariand, P., Cesbron, F., and Geffroy, J. (1977) Les minéraux, leurs gisements, leurs associations. Editions Minéraux et Fossiles.

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