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Le Burg Mine (Le Burc Mine), Alban - Le Fraysse area, Tarn, Occitanie, France

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Name(s) in local language(s):Mine du Burg (Mine du Burc), Région d'Alban et du Fraysse, Tarn, Midi-Pyrénées, France
Latitude & Longitude (WGS84): 43° 52' 23'' North , 2° 24' 20'' East
Latitude & Longitude (decimal): 43.87306,2.40556
GeoHash:G#: spc9wdzej
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate
Other/historical names associated with this locality:Midi-Pyrénées


A large fluorite vein (1200m in long and 3m in width), hosted in ordovician black schists. As all fluorite deposits in Tarn, this one is mainly composed of blue fluorite with quartz and siderite. It is well known for its nice blue and/or yellow fluorite crystals on quartz.
The vein was mined during antiquity (for copper) but was only rediscovered in 1945 and operated (for fluorite) from 1954 until April 2006. During the operation up to 290m depth, 650,000 tons of fluorite were worked out. It was the last fluorite mine in France...

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Reference: Van King
Bismuthinite
Formula: Bi2S3
Reference: J. Geffroy and M. Lenfant, Bull. Soc. Franç. Minér. Crist. , 1963, LXXXVI, pp. 201-203.
Chalcopyrite
Formula: CuFeS2
Reference: P Haas collection
Copper
Formula: Cu
Reference: Inventaire minéralogique du Tarn, BRGM
Cuprite
Formula: Cu2O
Reference: Van King
Dolomite
Formula: CaMg(CO3)2
Reference: Inventaire minéralogique du Tarn, BRGM
Fluorite
Formula: CaF2
Habit: cubes
Colour: sky blue
Reference: P Haas collection
Goethite
Formula: α-Fe3+O(OH)
Reference: Van King
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Patrice Queneau Collection
Pyrite
Formula: FeS2
Reference: Inventaire minéralogique du Tarn, BRGM
Quartz
Formula: SiO2
Reference: P Haas collection
Siderite
Formula: FeCO3
Reference: Inventaire minéralogique du Tarn, BRGM
Sphalerite
Formula: ZnS
Reference: Inventaire minéralogique du Tarn, BRGM
Stromeyerite
Formula: AgCuS
Reference: Picot, P. and Johan, Z. (1977). Atlas des Minéreaux Métalliques, BRGM, Elsevier.
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13
Reference: Inventaire minéralogique du Tarn, BRGM

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
'Bismuthinite'2.DB.05Bi2S3
'Chalcopyrite'2.CB.10aCuFeS2
'Pyrite'2.EB.05aFeS2
'Sphalerite'2.CB.05aZnS
'Stromeyerite'2.BA.40AgCuS
'Tetrahedrite'2.GB.05Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Cuprite'4.AA.10Cu2O
'Goethite'4.00.α-Fe3+O(OH)
'Quartz'4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Dolomite'5.AB.10CaMg(CO3)2
'Malachite'5.BA.10Cu2(CO3)(OH)2
'Siderite'5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Stromeyerite2.4.6.1AgCuS
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Tetrahedrite3.3.6.1Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
H MalachiteCu2(CO3)(OH)2
CCarbon
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
C SideriteFeCO3
OOxygen
O BaryteBaSO4
O CupriteCu2O
O DolomiteCaMg(CO3)2
O Goethiteα-Fe3+O(OH)
O MalachiteCu2(CO3)(OH)2
O QuartzSiO2
O SideriteFeCO3
FFluorine
F FluoriteCaF2
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si QuartzSiO2
SSulfur
S BaryteBaSO4
S BismuthiniteBi2S3
S ChalcopyriteCuFeS2
S PyriteFeS2
S SphaleriteZnS
S StromeyeriteAgCuS
S TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
CaCalcium
Ca DolomiteCaMg(CO3)2
Ca FluoriteCaF2
FeIron
Fe ChalcopyriteCuFeS2
Fe Goethiteα-Fe3+O(OH)
Fe PyriteFeS2
Fe SideriteFeCO3
Fe TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
CuCopper
Cu ChalcopyriteCuFeS2
Cu CopperCu
Cu CupriteCu2O
Cu MalachiteCu2(CO3)(OH)2
Cu StromeyeriteAgCuS
Cu TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
ZnZinc
Zn SphaleriteZnS
Zn TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
AgSilver
Ag StromeyeriteAgCuS
SbAntimony
Sb TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
BaBarium
Ba BaryteBaSO4
BiBismuth
Bi BismuthiniteBi2S3

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

Cambrian
485.4 - 541 Ma



ID: 3132511
platform deposit or turbidittic basin

Age: Cambrian (485.4 - 541 Ma)

Description: low grade metamorphic

Lithology: Major:{sandstone}, Minor{limestone,phyllite,quartzite}

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]

Neoproterozoic
541 - 1000 Ma



ID: 3188144
Neoproterozoic crystalline metamorphic rocks

Age: Neoproterozoic (541 - 1000 Ma)

Comments: Massif Central

Lithology: Crystalline metamorphic 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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- GRITTI C, SOULIE M.. (1969): La Barytine du Burc et sa position par rapport à la Fluorine. Bulletin de la Société d’Histoire naturelle de Toulouse, 105, p. 227-233. [referring to other locality?]


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