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Sidi Aissa, Sidi Aissa Pb-Zn-(Ag) District, Bizerte, Tunisiai
| Regional Level Types | |
|---|---|
| Sidi Aissa | Deposit |
| Sidi Aissa Pb-Zn-(Ag) District | - not defined - |
| Bizerte | Governorate |
| Tunisia | Country |
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Latitude & Longitude (WGS84):
37° 6' 42'' North , 9° 30' 15'' East
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Mateur | 31,005 (2018) | 16.4km |
| Douar Tindja | 18,551 (2015) | 22.6km |
| Sejenane | 5,009 (2018) | 24.4km |
| Menzel Bourguiba | 46,245 (2018) | 25.4km |
| Menzel Abderhaman | 15,769 (2018) | 34.7km |
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.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
11 valid minerals.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
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 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Natrojarosite | 7.BC.10 | NaFe3(SO4)2(OH)6 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Mimetite | 8.BN.05 | Pb5(AsO4)3Cl |
| Group 9 - Silicates | |||
| ⓘ | Muscovite var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ | 9.EC.15 | KAl2(AlSi3O10)(OH)2 | |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Natrojarosite | NaFe3(SO4)2(OH)6 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Mimetite | Pb5(AsO4)3Cl |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Natrojarosite | NaFe3(SO4)2(OH)6 |
| O | ⓘ Quartz | SiO2 |
| Na | Sodium | |
| Na | ⓘ Natrojarosite | NaFe3(SO4)2(OH)6 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Al | Aluminium | |
| Al | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Natrojarosite | NaFe3(SO4)2(OH)6 |
| S | ⓘ Sphalerite | ZnS |
| Cl | Chlorine | |
| Cl | ⓘ Mimetite | Pb5(AsO4)3Cl |
| K | Potassium | |
| K | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Natrojarosite | NaFe3(SO4)2(OH)6 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Mimetite | Pb5(AsO4)3Cl |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Mimetite | Pb5(AsO4)3Cl |
Other Regions, Features and Areas containing this locality
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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
