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Aïn Barbar, Edough-Cap de Fer Massif, Constantine District, Constantine Province, Algeriai
Regional Level Types
Aïn Barbar- not defined -
Edough-Cap de Fer MassifMassif
Constantine DistrictDistrict
Constantine ProvinceProvince
AlgeriaCountry

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Key
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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 36° North , 6° East (est.)
Margin of Error:~36km
Köppen climate type:Csa : Hot-summer Mediterranean climate


Located in the NE of the Constantine District.

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 dykes ; propylitic, sericitic and potassic alteration.
The silification is important.
The vein mineralization is located in shear zones (Playfair and Abaïd veins), it 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 bars, 320-180°C.


Regions containing this locality

African PlateTectonic Plate
Northwest Africa MeteoritesMeteorite Fall Location

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


26 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Description: Associated with chlorite and quartz.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
'Albite-Anorthite Series'
Description: Associated with biotite or amphibole.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
'Apatite'
Description: In apatite chloritites.
Reference: Bull. Minéral., 1988, 111, pp. 183-206.
Arsenopyrite
Formula: FeAsS
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
'Biotite'
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Bismuthinite
Formula: Bi2S3
Description: Chalcopyrite stage.
Reference: Bull. Minéral., 1988, 111, pp. 183-206.
Brochantite
Formula: Cu4(SO4)(OH)6
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: 543.
Calcite
Formula: CaCO3
Description: Associated with chlorite. Chalcopyrite stage.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Chalcopyrite
Formula: CuFeS2
Description: Two sub-stages : Chalcopyrite I and chalcopyrite II and late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Description: Al-rich-chamosite (more or less magnesian : X Fe increases with time).
Reference: Bull. Minéral., 1988, 111, pp. 183-206.
'Chlorite Group'
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
'Clinopyroxene Subgroup'
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Cosalite
Formula: Pb2Bi2S5
Description: Se/Ag-cosalite. Chalcopyrite stage.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Cubanite
Formula: CuFe2S3
Description: Chalcopyrite stage.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Description: Early stage and silicification episode.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Fluorite
Formula: CaF2
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Galena
Formula: PbS
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Hematite
Formula: Fe2O3
Description: Associated with silicification stage in veins.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
'K Feldspar'
Description: Silicification, chalcopyrite and late stages.
Reference: Bull. Minéral., 1988, 111, pp. 183-206.
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Description: Silicification, chalcopyrite and late stages.
Reference: Bull. Minéral., 1988, 111, pp. 183-206.
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Mackinawite
Formula: (Fe,Ni)9S8
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Magnetite
Formula: Fe2+Fe3+2O4
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Marcasite
Formula: FeS2
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Muscovite var: Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
'Phengite'
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Description: Chalcopyrite and late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Pyrite
Formula: FeS2
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Pyrrhotite
Formula: Fe7S8
Description: Pyrrhotite H associated with sphalerite stage. Pyrrhotite M associated with chalcopyrite stage.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Quartz
Formula: SiO2
Description: Silicification and late stage.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Quartz var: Chalcedony
Formula: SiO2
Description: Associated with arsenopyrite.
Reference: Bull. Minéral., 1988, 111, pp. 183-206.
Siderite
Formula: FeCO3
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Sphalerite
Formula: ZnS
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Description: Late stages.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.
Wairakite
Formula: Ca(Al2Si4O12) · 2H2O
Description: Associated with plagioclase.
Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Bismuthinite2.DB.05Bi2S3
Chalcopyrite2.CB.10aCuFeS2
Cosalite2.JB.10Pb2Bi2S5
Cubanite2.CB.55aCuFe2S3
Galena2.CD.10PbS
Mackinawite2.CC.25(Fe,Ni)9S8
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Chalcedony4.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
Albite9.FA.35Na(AlSi3O8)
Chamosite9.EC.55(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Vermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Wairakite9.GB.05Ca(Al2Si4O12) · 2H2O
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Biotite'-
'Chlorite Group'-
'Clinopyroxene Subgroup'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Phengite'-KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Mackinawite2.7.2.1(Fe,Ni)9S8
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Cubanite2.9.13.1CuFe2S3
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
2.5 < ø < 3
Cosalite3.5.9.1Pb2Bi2S5
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
var: Illite71.2.2d.2K0.65Al2.0[Al0.65Si3.35O10](OH)2
Vermiculite71.2.2d.3Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Chamosite71.4.1.7(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Wairakite77.1.1.3Ca(Al2Si4O12) · 2H2O
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Apatite'-
'Biotite'-
'Chlorite Group'-
'Clinopyroxene Subgroup'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Kaolinite-Al2(Si2O5)(OH)4
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
'Phengite'-KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Quartz
var: Chalcedony
-SiO2

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H WairakiteCa(Al2Si4O12) · 2H2O
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
H PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
H Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
H LaumontiteCaAl2Si4O12 · 4H2O
H KaoliniteAl2(Si2O5)(OH)4
H VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
H Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
H BrochantiteCu4(SO4)(OH)6
H MuscoviteKAl2(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
C SideriteFeCO3
OOxygen
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O WairakiteCa(Al2Si4O12) · 2H2O
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O QuartzSiO2
O AlbiteNa(AlSi3O8)
O CalciteCaCO3
O K Feldspar (var: Adularia)KAlSi3O8
O PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
O Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
O HematiteFe2O3
O LaumontiteCaAl2Si4O12 · 4H2O
O KaoliniteAl2(Si2O5)(OH)4
O VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
O SideriteFeCO3
O MagnetiteFe2+Fe23+O4
O Quartz (var: Chalcedony)SiO2
O Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
O BrochantiteCu4(SO4)(OH)6
O MuscoviteKAl2(AlSi3O10)(OH)2
FFluorine
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
F FluoriteCaF2
NaSodium
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mg VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Mg Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
AlAluminium
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al WairakiteCa(Al2Si4O12) · 2H2O
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al AlbiteNa(AlSi3O8)
Al K Feldspar (var: Adularia)KAlSi3O8
Al PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Al Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Al LaumontiteCaAl2Si4O12 · 4H2O
Al KaoliniteAl2(Si2O5)(OH)4
Al VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Al Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si WairakiteCa(Al2Si4O12) · 2H2O
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si QuartzSiO2
Si AlbiteNa(AlSi3O8)
Si K Feldspar (var: Adularia)KAlSi3O8
Si PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Si Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
Si LaumontiteCaAl2Si4O12 · 4H2O
Si KaoliniteAl2(Si2O5)(OH)4
Si VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Si Quartz (var: Chalcedony)SiO2
Si Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Si MuscoviteKAl2(AlSi3O10)(OH)2
SSulfur
S PyriteFeS2
S SphaleriteZnS
S PyrrhotiteFe7S8
S ChalcopyriteCuFeS2
S CubaniteCuFe2S3
S CosalitePb2Bi2S5
S GalenaPbS
S ArsenopyriteFeAsS
S Mackinawite(Fe,Ni)9S8
S MarcasiteFeS2
S BismuthiniteBi2S3
S BrochantiteCu4(SO4)(OH)6
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K K Feldspar (var: Adularia)KAlSi3O8
K PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
K Muscovite (var: Illite)K0.65Al2.0[Al0.65Si3.35O10](OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca WairakiteCa(Al2Si4O12) · 2H2O
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca CalciteCaCO3
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca FluoriteCaF2
TiTitanium
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe ChalcopyriteCuFeS2
Fe HematiteFe2O3
Fe CubaniteCuFe2S3
Fe VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Fe ArsenopyriteFeAsS
Fe Mackinawite(Fe,Ni)9S8
Fe MarcasiteFeS2
Fe SideriteFeCO3
Fe MagnetiteFe2+Fe23+O4
Fe Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
NiNickel
Ni Mackinawite(Fe,Ni)9S8
CuCopper
Cu ChalcopyriteCuFeS2
Cu CubaniteCuFe2S3
Cu BrochantiteCu4(SO4)(OH)6
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
PbLead
Pb CosalitePb2Bi2S5
Pb GalenaPbS
BiBismuth
Bi CosalitePb2Bi2S5
Bi BismuthiniteBi2S3

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Marignac, Ch. (1988): Bull. Minéral., 111, 359-381.


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