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Aïn Barbar, Edough-Cap de Fer Massif, Annaba District, Annaba Province, Algeriai
Regional Level Types
Aïn BarbarGeothermal Field (Paleo feature)
Edough-Cap de Fer MassifMassif
Annaba DistrictDistrict
Annaba ProvinceProvince
AlgeriaCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
36° 58' 38'' North , 7° 32' 11'' East
Latitude & Longitude (decimal):
36.97723,7.53662
GeoHash:
G#: snt677rzz
GRN:
N25E05
Type:
Geothermal Field (Paleo feature) - last checked 2020
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Mindat Locality ID:
68177
Long-form identifier:
mindat:1:2:68177:4
GUID (UUID V4):
872c3629-a2e4-4bf4-ae41-30886b1369ad


Ain Barbar zinc mine

Aïn Barbar was part of the "Vieille Montagne Agence Hammam".
The deposit was consecutively operated by the original concessionaires, Messrs. Lebaille, Lecoq and Berthon until 1867; the Algerian Mineral Company, after 1874 and until 1879; the Vieille-Montagne after 1888.

In 1900, the mine was bought by the Société d'Aïn-Barbar.

Langhian (16-15 My) terrestrial palaeogeothermal field (stratified aquifer) with polymetallic Fe/Zn/Cu/Pb-veins.

Host rocks: Nappe of Numidian clay-quartz, Oligo-Miocene flysch, and Cretaceous clay-carbonate flysch (deeply altered by the high energy geothermal system).

The flyschs are crosscut by microgranite and rhyolite dikes; propylitic, sericitic and potassic alteration.
The silicification is important.

The vein mineralization is located in shear zones (Playfair and Abaïd veins), and is quite complex:

- Early stage: Chlorite-epidote

- Main stage:
Sphalerite, pyrrhotite H
Quartz, sphalerite
Quartz (silicification), chlorite, phengite
Illite, chalcopyrite, pyrrhotite M
Pyrite, calcite

- Late stage:
Vein breccia fillings, comb quartz with microcrystalline quartz and chalcedony.
Quartz, adularia
Calcite, chlorite
Siderite
Phengitic illite
Fluorite
Various sulfides

Evolution: 130–80 bar, 320-180 °C.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

26 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
Description: Associated with chlorite and quartz.
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Description: In apatite chloritites.
ⓘ Arsenopyrite
Formula: FeAsS
Description: Late stages.
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Bismuthinite
Formula: Bi2S3
Description: Chalcopyrite stage.
ⓘ Brochantite
Formula: Cu4(SO4)(OH)6
ⓘ Calcite
Formula: CaCO3
Description: Associated with chlorite. Chalcopyrite stage.
ⓘ Chalcopyrite
Formula: CuFeS2
Description: Two sub-stages : Chalcopyrite I and chalcopyrite II and late stages.
ⓘ Chamosite
Formula: (Fe2+)5Al(Si,Al)4O10(OH,O)8
Description: Al-rich-chamosite (more or less magnesian : X Fe increases with time).
ⓘ 'Chlorite Group'
ⓘ 'Clinopyroxene Subgroup'
ⓘ Cosalite
Formula: Pb2Bi2S5
Description: Se/Ag-cosalite. Chalcopyrite stage.
ⓘ Cubanite
Formula: CuFe2S3
Description: Chalcopyrite stage.
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Description: Early stage and silicification episode.
ⓘ Fluorite
Formula: CaF2
Description: Late stages.
ⓘ Galena
Formula: PbS
ⓘ Hematite
Formula: Fe2O3
Description: Associated with silicification stage in veins.
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
Description: Late stages.
ⓘ 'K Feldspar'
Description: Silicification, chalcopyrite and late stages.
ⓘ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
Description: Silicification, chalcopyrite and late stages.
ⓘ Laumontite
Formula: CaAl2Si4O12 · 4H2O
Description: Late stages.
ⓘ Mackinawite
Formula: FeS
Description: Late stages.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
Description: Late stages.
ⓘ Marcasite
Formula: FeS2
Description: Late stages.
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Muscovite var. Phengite
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Description: Chalcopyrite and late stages.
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
Description: Associated with biotite or amphibole.
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
Description: Pyrrhotite H associated with sphalerite stage. Pyrrhotite M associated with chalcopyrite stage.
ⓘ Quartz
Formula: SiO2
Description: Silicification and late stage.
ⓘ Quartz var. Chalcedony
Formula: SiO2
Description: Associated with arsenopyrite.
ⓘ Siderite
Formula: FeCO3
Description: Late stages.
ⓘ Sphalerite
Formula: ZnS
ⓘ Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Description: Late stages.
ⓘ Wairakite
Formula: Ca(Al2Si4O12) · 2H2O
Description: Associated with plagioclase.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘCubanite2.CB.55aCuFe2S3
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘMackinawite2.CC.25FeS
ⓘGalena2.CD.10PbS
ⓘBismuthinite2.DB.05Bi2S3
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘCosalite2.JB.10Pb2Bi2S5
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBrochantite7.BB.25Cu4(SO4)(OH)6
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘMuscovite
var. Sericite		9.EC.15KAl2(AlSi3O10)(OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘvar. Phengite9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘVermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
ⓘChamosite9.EC.55(Fe2+)5Al(Si,Al)4O10(OH,O)8
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘWairakite9.GB.05Ca(Al2Si4O12) · 2H2O
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'K Feldspar'-
ⓘ'var. Adularia'-KAlSi3O8
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Chlorite Group'-
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ BrochantiteCu4(SO4)(OH)6
Hⓘ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ LaumontiteCaAl2Si4O12 · 4H2O
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Hⓘ WairakiteCa(Al2Si4O12) · 2H2O
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ CalciteCaCO3
Cⓘ SideriteFeCO3
OOxygen
Oⓘ K Feldspar var. AdulariaKAlSi3O8
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BrochantiteCu4(SO4)(OH)6
Oⓘ CalciteCaCO3
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ HematiteFe2O3
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ LaumontiteCaAl2Si4O12 · 4H2O
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
Oⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Oⓘ WairakiteCa(Al2Si4O12) · 2H2O
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluoriteCaF2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mgⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
AlAluminium
Alⓘ K Feldspar var. AdulariaKAlSi3O8
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ LaumontiteCaAl2Si4O12 · 4H2O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Alⓘ WairakiteCa(Al2Si4O12) · 2H2O
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ K Feldspar var. AdulariaKAlSi3O8
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ LaumontiteCaAl2Si4O12 · 4H2O
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Siⓘ WairakiteCa(Al2Si4O12) · 2H2O
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ BismuthiniteBi2S3
Sⓘ BrochantiteCu4(SO4)(OH)6
Sⓘ ChalcopyriteCuFeS2
Sⓘ CosalitePb2Bi2S5
Sⓘ CubaniteCuFe2S3
Sⓘ GalenaPbS
Sⓘ MackinawiteFeS
Sⓘ MarcasiteFeS2
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ K Feldspar var. AdulariaKAlSi3O8
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ FluoriteCaF2
Caⓘ LaumontiteCaAl2Si4O12 · 4H2O
Caⓘ WairakiteCa(Al2Si4O12) · 2H2O
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ ChalcopyriteCuFeS2
Feⓘ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Feⓘ CubaniteCuFe2S3
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3
Feⓘ MackinawiteFeS
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SideriteFeCO3
Feⓘ VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
CuCopper
Cuⓘ BrochantiteCu4(SO4)(OH)6
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CubaniteCuFe2S3
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
PbLead
Pbⓘ CosalitePb2Bi2S5
Pbⓘ GalenaPbS
BiBismuth
Biⓘ BismuthiniteBi2S3
Biⓘ CosalitePb2Bi2S5

Localities in this Region

Algeria

Other Regions, Features and Areas containing this locality

African PlateTectonic Plate

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

www.getamap.net (n.d.) http://www.getamap.net/maps/algeria/algeria_(general)/_ainbarbar/
www.getamap.net (n.d.) http://www.getamap.net/maps/algeria/algeria_(general)/_ainbarbar_seiched/
Marignac, Ch. (1983) The Polymetallic Ore Veins of Aïn-Barbar (Algeria) as a Consequence of Alpine Geothermal Activity. In Mineral Deposits of the Alps and of the Alpine Epoch in Europe. Springer Berlin Heidelberg. p.298-312. doi:10.1007/978-3-642-68988-8_31
Marignac, Christian (1988) P-T-X evolution of ore veins associated with palaeogeothermal activity at Aïn Barbar (NE Konstantine, Algeria) : reconstruction from fluid inclusion data. Bulletin de Minéralogie: 111(3-4): 359-381. https://www.persee.fr/doc/bulmi_0180-9210_1988_act_111_3_8058
www.mindat.org (n.d.) https://www.mindat.org/feature-2508289.html
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