Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Sidi Aissa, Sidi Aissa Pb-Zn-(Ag) District, Bizerte, Tunisiai
Regional Level Types
Sidi AissaDeposit
Sidi Aissa Pb-Zn-(Ag) District- not defined -
BizerteGovernorate
TunisiaCountry

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Latitude & Longitude (WGS84):
37° 6' 42'' North , 9° 30' 15'' East
Latitude & Longitude (decimal):
37.11186,9.50424
GRN:
N25E06
Type:
Deposit
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Mateur31,005 (2018)16.4km
Douar Tindja18,551 (2015)22.6km
Sejenane5,009 (2018)24.4km
Menzel Bourguiba46,245 (2018)25.4km
Menzel Abderhaman15,769 (2018)34.7km
Mindat Locality ID:
475005
Long-form identifier:
mindat:1:2:475005:8
GUID (UUID V4):
0


Intermediate-Sulfidation Epithermal Mineralization

The mineralization at Sidi Aissa predominantly consists of sulfides, specifically galena (PbS) and sphalerite (ZnS) enriched with silver (30 g/t), within a barite-dominant gangue. These sulfide minerals occur as fine grains, typically not exceeding 0.2 mm in size. The semi-massive to massive orebodies, composed of a fine-grained mineral matrix, are hosted within Paleocene marls interbedded with thin silicified black shale layers. These deposits, exposed in an abandoned quarry, are aligned along E–W trending normal faults that define the boundaries of a half-graben structure. They are buried at an approximate depth of 20 m below the surface, concentrated over an area of approximately 600 m2. Vein thickness generally ranges from 1 to 5 m, occasionally reaching up to 10 m, with vein lengths varying between 200 m and 1 kilometre.

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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.


Mineral List


11 valid minerals.

Rock Types Recorded


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Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Cerussite
Formula: PbCO3
ⓘ 'Chlorite Group'
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Galena
Formula: PbS
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Mimetite
Formula: Pb5(AsO4)3Cl
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Natrojarosite
Formula: NaFe3(SO4)2(OH)6
ⓘ Quartz
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘGalena2.CD.10PbS
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘCerussite5.AB.15PbCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘNatrojarosite7.BC.10NaFe3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMimetite8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ NatrojarositeNaFe3(SO4)2(OH)6
CCarbon
Cⓘ CalciteCaCO3
Cⓘ CerussitePbCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ CerussitePbCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MimetitePb5(AsO4)3Cl
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ NatrojarositeNaFe3(SO4)2(OH)6
Oⓘ QuartzSiO2
NaSodium
Naⓘ NatrojarositeNaFe3(SO4)2(OH)6
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
AlAluminium
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
SSulfur
Sⓘ BaryteBaSO4
Sⓘ GalenaPbS
Sⓘ NatrojarositeNaFe3(SO4)2(OH)6
Sⓘ SphaleriteZnS
ClChlorine
Clⓘ MimetitePb5(AsO4)3Cl
KPotassium
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
FeIron
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ NatrojarositeNaFe3(SO4)2(OH)6
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ MimetitePb5(AsO4)3Cl
BaBarium
Baⓘ BaryteBaSO4
PbLead
Pbⓘ CerussitePbCO3
Pbⓘ GalenaPbS
Pbⓘ MimetitePb5(AsO4)3Cl

Other Regions, Features and Areas containing this locality

AfricaContinent
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

[1]Ayari, Jamel; Barbieri, Maurizio; Boschetti, Tiziano; Sellami, Ahmed; Ballirano, Paolo; Charef, Abdelkarim (2025) Geological, Mineralogical, and Alteration Insights of the Intermediate-Sulfidation Epithermal Mineralization in the Sidi Aissa District, Northern Tunisia. Geosciences, 15 (7). doi:10.3390/geosciences15070269
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