Aïn Barbar, Edough-Cap de Fer Massif, Annaba District, Annaba Province, Algeria i
Regional Level Types
Aïn Barbar Geothermal Field (Paleo feature)
Edough-Cap de Fer Massif Massif
Annaba District District
Annaba Province Province
Algeria Country

Regional Level Types
Aïn Barbar	Geothermal Field (Paleo feature)
Edough-Cap de Fer Massif	Massif
Annaba District	District
Annaba Province	Province
Algeria	Country

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Brochantite

Aïn Barbar, Edough-Cap de Fer Massif, Annaba District, Annaba Province, Algeria

Brochantite

Aïn Barbar, Edough-Cap de Fer Massif, Annaba District, Annaba Province, Algeria

Brochantite

Aïn Barbar, Edough-Cap de Fer Massif, Annaba District, Annaba Province, Algeria

Latitude & Longitude (WGS84):

36° 59' 38'' North , 7° 33' 21'' East

Latitude & Longitude (decimal):

G#: snt67yw10

Locality type:

Geothermal Field (Paleo feature) - last checked 2020

Köppen climate type:

Csa : Hot-summer Mediterranean climate

Note: Not to be confused with the Aïn Barbar open-pit feldspar mine in Tamanrasset Province ( https://en.wikipedia.org/wiki/A%C3%AFn_Barbar_mine ).

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), 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.

Select Mineral List Type

Standard Detailed Gallery 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'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

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'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂

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

Aïn Barbar, Edough-Cap de Fer Massif, Annaba District, Annaba Province, Algeria

ⓘ 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: K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂

Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.

ⓘ Muscovite var. Phengite

Formula: KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂

Description: Chalcopyrite and late stages.

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.

ⓘ Pyrite

Formula: FeS₂

Reference: Ch. Marignac, Bull. Minéral. , 1988, 111, pp. 359-381.

ⓘ Pyrrhotite

Formula: Fe_1-xS

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: Mg_0.7(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.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Arsenopyrite	2.EB.20	FeAsS
ⓘ	Bismuthinite	2.DB.05	Bi₂S₃
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Cosalite	2.JB.10	Pb₂Bi₂S₅
ⓘ	Cubanite	2.CB.55a	CuFe₂S₃
ⓘ	Galena	2.CD.10	PbS
ⓘ	Mackinawite	2.CC.25	(Fe,Ni)₉S₈
ⓘ	Marcasite	2.EB.10a	FeS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Sphalerite	2.CB.05a	ZnS
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	var. Chalcedony	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Brochantite	7.BB.25	Cu₄(SO₄)(OH)₆
Group 9 - Silicates
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Chamosite	9.EC.55	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
ⓘ	Epidote	9.BG.05a	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
ⓘ	Kaolinite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Illite	9.EC.15	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ	var. Phengite	9.EC.15	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Vermiculite	9.EC.50	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
ⓘ	Wairakite	9.GB.05	Ca(Al₂Si₄O₁₂) · 2H₂O
Unclassified Minerals, Rocks, etc.
ⓘ	'Albite-Anorthite Series'	-
ⓘ	'Amphibole Supergroup'	-	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
ⓘ	'Chlorite Group'	-
ⓘ	'Clinopyroxene Subgroup'	-
ⓘ	'K Feldspar'	-
ⓘ	'var. Adularia'	-	KAlSi₃O₈

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
A_mB_nX_p, with (m+n):p = 9:8
ⓘ	Mackinawite	2.7.2.1	(Fe,Ni)₉S₈
A_mX_p, with m:p = 1:1
ⓘ	Galena	2.8.1.1	PbS
ⓘ	Pyrrhotite	2.8.10.1	Fe_1-xS
ⓘ	Sphalerite	2.8.2.1	ZnS
A_mB_nX_p, with (m+n):p = 1:1
ⓘ	Chalcopyrite	2.9.1.1	CuFeS₂
ⓘ	Cubanite	2.9.13.1	CuFe₂S₃
A_mB_nX_p, with (m+n):p = 2:3
ⓘ	Bismuthinite	2.11.2.3	Bi₂S₃
A_mB_nX_p, with (m+n):p = 1:2
ⓘ	Arsenopyrite	2.12.4.1	FeAsS
ⓘ	Marcasite	2.12.2.1	FeS₂
ⓘ	Pyrite	2.12.1.1	FeS₂
Group 3 - SULFOSALTS
2.5 < ø < 3
ⓘ	Cosalite	3.5.9.1	Pb₂Bi₂S₅
Group 4 - SIMPLE OXIDES
A₂X₃
ⓘ	Hematite	4.3.1.2	Fe₂O₃
Group 7 - MULTIPLE OXIDES
AB₂X₄
ⓘ	Magnetite	7.2.2.3	Fe²⁺Fe³⁺₂O₄
Group 9 - NORMAL HALIDES
AX₂
ⓘ	Fluorite	9.2.1.1	CaF₂
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO₃)
ⓘ	Calcite	14.1.1.1	CaCO₃
ⓘ	Siderite	14.1.1.3	FeCO₃
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)_m(XO₄)_pZ_q, where m:p>2:1
ⓘ	Brochantite	30.1.3.1	Cu₄(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)
ⓘ	Epidote	58.2.1a.7	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
ⓘ	Muscovite	71.2.2a.1	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Illite	71.2.2d.2	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
ⓘ	Vermiculite	71.2.2d.3	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
ⓘ	Chamosite	71.4.1.7	(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
ⓘ	Quartz	75.1.3.1	SiO₂
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
ⓘ	Albite	76.1.3.1	Na(AlSi₃O₈)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
ⓘ	Laumontite	77.1.1.4	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Wairakite	77.1.1.3	Ca(Al₂Si₄O₁₂) · 2H₂O
Unclassified Minerals, Mixtures, etc.
ⓘ	'Albite-Anorthite Series'	-
ⓘ	'Amphibole Supergroup'	-	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
ⓘ	'Chlorite Group'	-
ⓘ	'Clinopyroxene Subgroup'	-
ⓘ	'K Feldspar'	-
ⓘ	'var. Adularia'	-	KAlSi₃O₈
ⓘ	Kaolinite	-	Al₂(Si₂O₅)(OH)₄
ⓘ	Muscovite var. Phengite	-	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
ⓘ	var. Sericite	-	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Quartz var. Chalcedony	-	SiO₂

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
H	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
H	ⓘ Amphibole Supergroup	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
H	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
H	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
H	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
H	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
O	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
O	ⓘ Amphibole Supergroup	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Calcite	CaCO₃
O	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
O	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
O	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
O	ⓘ Siderite	FeCO₃
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Quartz var. Chalcedony	SiO₂
O	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
O	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
F	Fluorine
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
F	ⓘ Amphibole Supergroup	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
F	ⓘ Fluorite	CaF₂
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Mg	Magnesium
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Mg	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Mg	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Mg	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Al	Aluminium
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Al	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Al	ⓘ Amphibole Supergroup	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Al	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Al	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Al	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Si	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Si	ⓘ Amphibole Supergroup	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
Si	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Si	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Kaolinite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Vermiculite	Mg_0.7(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	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Cubanite	CuFe₂S₃
S	ⓘ Cosalite	Pb₂Bi₂S₅
S	ⓘ Galena	PbS
S	ⓘ Arsenopyrite	FeAsS
S	ⓘ Mackinawite	(Fe,Ni)₉S₈
S	ⓘ Marcasite	FeS₂
S	ⓘ Bismuthinite	Bi₂S₃
S	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
Cl	Chlorine
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Cl	ⓘ Amphibole Supergroup	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
K	Potassium
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
K	ⓘ K Feldspar var. Adularia	KAlSi₃O₈
K	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
K	ⓘ Muscovite var. Illite	K_0.65Al_2.0[Al_0.65Si_3.35O₁₀](OH)₂
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ca	ⓘ Wairakite	Ca(Al₂Si₄O₁₂) · 2H₂O
Ca	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Fluorite	CaF₂
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Ti	ⓘ Amphibole Supergroup	AX₂Z₅((Si,Al,Ti)₈O₂₂)(OH,F,Cl,O)₂
Fe	Iron
Fe	ⓘ Epidote	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂ or Simplified: K(Mg,Fe)₃AlSi₃O₁₀(OH)₂
Fe	ⓘ Muscovite var. Phengite	KAl_1.5(Mg,Fe)_0.5(Al_0.5Si_3.5O₁₀)(OH)₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Cubanite	CuFe₂S₃
Fe	ⓘ Vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ · 8H₂O
Fe	ⓘ Arsenopyrite	FeAsS
Fe	ⓘ Mackinawite	(Fe,Ni)₉S₈
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Siderite	FeCO₃
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Chamosite	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈
Ni	Nickel
Ni	ⓘ Mackinawite	(Fe,Ni)₉S₈
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Cubanite	CuFe₂S₃
Cu	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
As	Arsenic
As	ⓘ Arsenopyrite	FeAsS
Pb	Lead
Pb	ⓘ Cosalite	Pb₂Bi₂S₅
Pb	ⓘ Galena	PbS
Bi	Bismuth
Bi	ⓘ Cosalite	Pb₂Bi₂S₅
Bi	ⓘ Bismuthinite	Bi₂S₃

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)

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.

External Links

https://www.mindat.org/feature-2508289.html

http://www.getamap.net/maps/algeria/algeria_(general)/_ainbarbar/

http://www.getamap.net/maps/algeria/algeria_(general)/_ainbarbar_seiched/

https://www.persee.fr/docAsPDF/bulmi_0180-9210_1988_act_111_3_8058.pdf [Marignac, 1988]

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