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El Karit, Oulmès Cercle, Khémisset Province, Rabat-Salé-Kénitra Region, Moroccoi
| Regional Level Types | |
|---|---|
| El Karit | - not defined - |
| Oulmès Cercle | Cercle |
| Khémisset Province | Province |
| Rabat-Salé-Kénitra Region | Region |
| Morocco | Country |
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Latitude & Longitude (WGS84):
33° 25' 32'' North , 6° 5' 57'' West
Latitude & Longitude (decimal):
Köppen climate type:
Pneumatolytic acid type Sn-W mineralizations related to Oulmès (Walmes) granite.
Host rocks: Cambro-Ordovician graphitic and graphitoid-rich metapelites, close to Hercynian Walmès granite.
A HT-LP contact metamorphism aureole rims the granite : internal andalusite zone (chloritoid-staurolite), brown biotite zone and green biotite external zone.
Pegmatitic/hydrothermal beryl-cassiterite veins and quartz veins are frequent in tourmalinized micaschists wallrocks.
Indications of tin in the region were already known in the 17th century; subsequently, alluvial prospecting in 1920 and 1921 led to the discovery of the El Karit deposit. Mining operations began in 1930 but were halted in 1934. Operations resumed following further studies in the 1940s–50s and the 1960s, finally concluding in 1974.
Host rocks: Cambro-Ordovician graphitic and graphitoid-rich metapelites, close to Hercynian Walmès granite.
A HT-LP contact metamorphism aureole rims the granite : internal andalusite zone (chloritoid-staurolite), brown biotite zone and green biotite external zone.
Pegmatitic/hydrothermal beryl-cassiterite veins and quartz veins are frequent in tourmalinized micaschists wallrocks.
Indications of tin in the region were already known in the 17th century; subsequently, alluvial prospecting in 1920 and 1921 led to the discovery of the El Karit deposit. Mining operations began in 1930 but were halted in 1934. Operations resumed following further studies in the 1940s–50s and the 1960s, finally concluding in 1974.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Andalusite Formula: Al2(SiO4)O Description: Zone between granite and metapelites. References: |
| ⓘ 'Apatite' Formula: Ca5(PO4)3A Description: In pegmatitic/hydrothermal veins.
In pelitic wallrocks. References: |
| ⓘ Beryl Formula: Be3Al2(Si6O18) Description: In pegmatitic/hydrothermal veins. References: |
| ⓘ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 Description: In pelitic wallrocks. References: |
| ⓘ Cassiterite Formula: SnO2 Description: In pegmatitic/hydrothermal veins. References: |
| ⓘ Chloritoid Formula: Fe2+Al2O(SiO4)(OH)2 References: |
| ⓘ Cordierite Formula: Mg2Al4Si5O18 Description: Zone between granite and metapelites. References: |
| ⓘ Ilmenite Formula: Fe2+TiO3 Description: In pelitic wallrocks. References: |
| ⓘ 'K Feldspar' Description: Zone between granite and metapelites. References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Description: Zone between granite and metapelites. References: |
| ⓘ Muscovite var. Phengite Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 Description: In pegmatitic/hydrothermal veins.
In pelitic wallrocks. References: |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Description: In pelitic wallrocks. References: |
| ⓘ Quartz Formula: SiO2 Description: In pelitic wallrocks.
Zone between granite and metapelites. References: |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Description: In pegmatitic/hydrothermal veins.
In pelitic wallrocks. References: |
| ⓘ Sillimanite Formula: Al2(SiO4)O Description: Zone between granite and metapelites. References: |
| ⓘ Staurolite Formula: Fe2+2Al9Si4O23(OH) References: |
| ⓘ Zircon Formula: Zr(SiO4) Description: In pelitic wallrocks. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.00.05 | SiO2 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Sillimanite | 9.AF.05 | Al2(SiO4)O |
| ⓘ | Andalusite | 9.AF.10 | Al2(SiO4)O |
| ⓘ | Staurolite | 9.AF.30 | Fe2+2Al9Si4O23(OH) |
| ⓘ | Chloritoid | 9.AF.85 | Fe2+Al2O(SiO4)(OH)2 |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Cordierite | 9.CJ.10 | Mg2Al4Si5O18 |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Phengite | 9.EC.15 | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified | |||
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Apatite' | - | Ca5(PO4)3A |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Chloritoid | Fe2+Al2O(SiO4)(OH)2 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Be | Beryllium | |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | Oxygen | |
| O | ⓘ Andalusite | Al2(SiO4)O |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Chloritoid | Fe2+Al2O(SiO4)(OH)2 |
| O | ⓘ Cordierite | Mg2Al4Si5O18 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Sillimanite | Al2(SiO4)O |
| O | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Apatite | Ca5(PO4)3A |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Na | Sodium | |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mg | ⓘ Cordierite | Mg2Al4Si5O18 |
| Mg | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Andalusite | Al2(SiO4)O |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Chloritoid | Fe2+Al2O(SiO4)(OH)2 |
| Al | ⓘ Cordierite | Mg2Al4Si5O18 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Sillimanite | Al2(SiO4)O |
| Al | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Andalusite | Al2(SiO4)O |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Chloritoid | Fe2+Al2O(SiO4)(OH)2 |
| Si | ⓘ Cordierite | Mg2Al4Si5O18 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Sillimanite | Al2(SiO4)O |
| Si | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| P | Phosphorus | |
| P | ⓘ Apatite | Ca5(PO4)3A |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Apatite | Ca5(PO4)3A |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chloritoid | Fe2+Al2O(SiO4)(OH)2 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Staurolite | Fe22+Al9Si4O23(OH) |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
Other Regions, Features and Areas containing this locality
AfricaContinent
African PlateTectonic Plate
- Atlas MountainsMountain Range
Northwest Africa MeteoritesGroup of Meteorite Fall Locations
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El Karit, Oulmès Cercle, Khémisset Province, Rabat-Salé-Kénitra Region, Morocco