MVT-type fluorite deposit with trace of galena, located about 10 km SW of Zaghouan.

Fluorite deposition in Carixian condensed layers series, during an epigenetic stage replacing dolomite and later, inside fissures and geodes. The mineralization level is an unconformity surface separating Lower Liassic limestones palaeorelief (emergence) from Carixian phosphatic limestones (both epigenetically dolomitized) and Domerian marl/limestone basin alternation.

Two stages of fluorite crystallization :
1) Main fluorite deposition (LT brine)
2) Late fluorite and quartz in fractures and vugs (HT less saline hydrothermal fluid : high geothermal gradient in extensional context and heat generation by fractures opening).

Mineralization at Jebel Stah occurs in three types of orebodies: stratiform, cavity fillings, and veins. The stratiform Carixian orebody, measuring more than 700 m long and 0.2 to 1.5 m in thickness, bears the petrographic type 1 fluorite “Fl1”, with its two sub-types (Fl1a, Fl1b).

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Fluorite (Fluorspar)

Mineral List

19 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Anglesite

Formula: PbSO₄

References:

Somrani, Chaima, Souissi, Fouad, Souissi, Radhia, De Giudici, Giovanni, Silva, Eduardo, Fancello, Dario, Podda, Francesca, Santos, José Francisco, Abu-Alam, Tamer, Ribeiro, Sara, et al. (2025) The Geochemical Characteristics of Ore-Forming Fluids in the Jebel Stah Fluorite Deposit in Northeast Tunisia: Insights from LA-ICP-MS and Sr Isotope Analyses. Minerals, 15 (4). doi:10.3390/min15040331

ⓘ Ankerite

Formula: Ca(Fe²⁺,Mg)(CO₃)₂

References:

Souissi, F., Souissi, R., & Dandurand, J. L. The Genesis of the Mississippi Valley-Type Fluorite Ore at Jebel Stah (Zaghouan District, North-Eastern Tunisia) Constrained by Thermal and Chemical Properties of Fluids and REE and Sr Isotope Geochemistry.

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

ⓘ Azurite

Formula: Cu₃(CO₃)₂(OH)₂

References:

ⓘ Baryte

Formula: BaSO₄

References:

ⓘ Calcite

Formula: CaCO₃

References:

Souissi, F., Dandurand, J. L., Fortuné, J. P. (1997) Thermal and chemical evolution of fluids during fluorite deposition in the Zaghouan province, north-eastern Tunisia. Mineralium Deposita, 32 (3) 257-270 doi:10.1007/s001260050091

ⓘ Celestine

Formula: SrSO₄

References:

ⓘ Dolomite

Formula: CaMg(CO₃)₂

References:

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

References:

F. Souissi et al. , Bull. Soc. Géol. France, March 1998, V 169, N° 2, pp. 163-175.

ⓘ Fluorapatite var. Carbonate-rich Fluorapatite

Formula: Ca₅(PO₄,CO₃)₃(F,O)

References:

F. Souissi et al. , Bull. Soc. Géol. France, March 1998, V 169, N° 2, pp. 163-175.

ⓘ Fluorite

Formula: CaF₂

References:

ⓘ Galena

Formula: PbS

References:

ⓘ 'Glauconite'

Formula: K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂

References:

ⓘ Gypsum

Formula: CaSO₄ · 2H₂O

References:

ⓘ Hematite

Formula: Fe₂O₃

References:

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

References:

ⓘ Marcasite

Formula: FeS₂

References:

ⓘ 'Petroleum'

Description: Inclusions in late fluorite and quartz.

References:

F. Souissi et al. , Bull. Soc. Géol. France, March 1998, V 169, N° 2, pp. 163-175.

ⓘ Pyrite

Formula: FeS₂

References:

ⓘ Quartz

Formula: SiO₂

References:

F. Souissi et al. , Bull. Soc. Géol. France, March 1998, V 169, N° 2, pp. 163-175.

ⓘ 'Rhythmite'

Formula: Ca₂₉(SiO₄)₈Cl₂₆

References:

ⓘ Siderite

Formula: FeCO₃

References:

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ Zinkosite

Formula: ZnSO₄

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Marcasite	2.EB.10a	FeS₂
Group 3 - Halides
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Quartz	4.DA.05	SiO₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Siderite	5.AB.05	FeCO₃
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Azurite	5.BA.05	Cu₃(CO₃)₂(OH)₂
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Zinkosite	7.AB.10	ZnSO₄
ⓘ	Anglesite	7.AD.35	PbSO₄
ⓘ	Baryte	7.AD.35	BaSO₄
ⓘ	Celestine	7.AD.35	SrSO₄
ⓘ	Gypsum	7.CD.40	CaSO₄ · 2H₂O
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite var. Carbonate-rich Fluorapatite	8.BN.05	Ca₅(PO₄,CO₃)₃(F,O)
ⓘ		8.BN.05	Ca₅(PO₄)₃F
Unclassified
ⓘ	'Glauconite'	-	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
ⓘ	'Petroleum'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Rhythmite'	-	Ca₂₉(SiO₄)₈Cl₂₆

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
H	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
H	ⓘ Gypsum	CaSO₄ · 2H₂O
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
C	ⓘ Calcite	CaCO₃
C	ⓘ Fluorapatite var. Carbonate-rich Fluorapatite	Ca₅(PO₄,CO₃)₃(F,O)
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Siderite	FeCO₃
O	Oxygen
O	ⓘ Anglesite	PbSO₄
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	ⓘ Baryte	BaSO₄
O	ⓘ Calcite	CaCO₃
O	ⓘ Fluorapatite var. Carbonate-rich Fluorapatite	Ca₅(PO₄,CO₃)₃(F,O)
O	ⓘ Celestine	SrSO₄
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
O	ⓘ Gypsum	CaSO₄ · 2H₂O
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Siderite	FeCO₃
O	ⓘ Zinkosite	ZnSO₄
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
O	ⓘ Rhythmite	Ca₂₉(SiO₄)₈Cl₂₆
F	Fluorine
F	ⓘ Fluorapatite var. Carbonate-rich Fluorapatite	Ca₅(PO₄,CO₃)₃(F,O)
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
F	ⓘ Fluorite	CaF₂
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Mg	Magnesium
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Al	Aluminium
Al	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Si	Silicon
Si	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Rhythmite	Ca₂₉(SiO₄)₈Cl₂₆
P	Phosphorus
P	ⓘ Fluorapatite var. Carbonate-rich Fluorapatite	Ca₅(PO₄,CO₃)₃(F,O)
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Anglesite	PbSO₄
S	ⓘ Baryte	BaSO₄
S	ⓘ Celestine	SrSO₄
S	ⓘ Galena	PbS
S	ⓘ Gypsum	CaSO₄ · 2H₂O
S	ⓘ Marcasite	FeS₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Sphalerite	ZnS
S	ⓘ Zinkosite	ZnSO₄
Cl	Chlorine
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Cl	ⓘ Rhythmite	Ca₂₉(SiO₄)₈Cl₂₆
K	Potassium
K	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Ca	Calcium
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Fluorapatite var. Carbonate-rich Fluorapatite	Ca₅(PO₄,CO₃)₃(F,O)
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Gypsum	CaSO₄ · 2H₂O
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ca	ⓘ Rhythmite	Ca₂₉(SiO₄)₈Cl₂₆
Fe	Iron
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Glauconite	K_0.60-0.85(Fe³⁺,Mg,Al)₂(Si,Al)₄O₁₀](OH)₂
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Marcasite	FeS₂
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Siderite	FeCO₃
Cu	Copper
Cu	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Zn	ⓘ Zinkosite	ZnSO₄
Sr	Strontium
Sr	ⓘ Celestine	SrSO₄
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Pb	Lead
Pb	ⓘ Anglesite	PbSO₄
Pb	ⓘ Galena	PbS

Other Regions, Features and Areas containing this locality

AfricaContinent

African PlateTectonic Plate

Pelagian basinBasin

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References

F. Souissi et al. (1998): Bull. Soc. Géol. France 169(2), 163-175.

Souissi, F. et al. (2010): Ore Geology Reviews 37, 15-30.

[1]Somrani, Chaima, Souissi, Fouad, Souissi, Radhia, De Giudici, Giovanni, Silva, Eduardo, Fancello, Dario, Podda, Francesca, Santos, José Francisco, Abu-Alam, Tamer, Ribeiro, Sara, et al. (2025) The Geochemical Characteristics of Ore-Forming Fluids in the Jebel Stah Fluorite Deposit in Northeast Tunisia: Insights from LA-ICP-MS and Sr Isotope Analyses. Minerals, 15 (4). doi:10.3390/min15040331

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Djebel Stah deposit, Zaghouan, TunisiaiRegional Level TypesDjebel Stah depositDeposit ZaghouanGovernorate TunisiaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Commodity List

Mineral List

Rock Types Recorded

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Djebel Stah deposit, Zaghouan, Tunisia i
Regional Level Types
Djebel Stah deposit Deposit
Zaghouan Governorate
Tunisia Country