Log In
Jbel Merguechoum fluorite–barite deposit, Taourirt Province, Oriental Region, Moroccoi
| Regional Level Types | |
|---|---|
| Jbel Merguechoum fluorite–barite deposit | Deposit |
| Taourirt Province | Province |
| Oriental Region | Region |
| Morocco | Country |
This page is currently not sponsored. Click here to sponsor this page.
Get Involved with mindat.org
Mindat.org has grown through countless contributions from mineral enthusiasts, collectors, researchers and experts around the world — people just like you.
Want to take part?
1
2
3
4
Contribute
Add photos, locality information and knowledge
Every contribution helps make mindat.org better for everyone.
Help document this locality
Do you have photos, specimens or locality images from Jbel Merguechoum fluorite–barite deposit, Taourirt Province, Oriental Region, Morocco? Share them with the community.
Upload specimen photos
Show interesting minerals, fossils or rocks from this locality.
Show interesting minerals, fossils or rocks from this locality.
Add locality images
Share photos of the site, outcrops or surrounding area.
Share photos of the site, outcrops or surrounding area.
Improve coverage for this page
Your contributions help build a more complete record for everyone.
Your contributions help build a more complete record for everyone.
Latitude & Longitude (WGS84):
34° 20' 23'' North , 2° 48' 3'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
A granite-hosted fluorite–barite vein-type deposit whose trace and rare-earth element (REE) geochemistry, role of structural defects and trace elements in fluorite coloration, and specimen quality of the fluorite in relation to geoheritage. The Paleozoic basement of the Eastern Meseta, which includes metamorphosed sedimentary and volcanic-sedimentary units, is exposed in several inliers, such as Jbel Merguechoum. Mesozoic sedimentary layers unconformably overlie these outcrops. Within the Jbel Merguechoum inlier, the fluorite–barite ore is hosted by a Neovariscan granite, described as a coarse-grained, leucocratic, porphyritic granite.
Stage I (Primary hydrothermal—Early hydrothermal stage). This stage is defined by massive to metasomatic texture resulting from direct replacement of Neovariscan granite.
Stage II (Coarse-crystalline hydrothermal—late hydrothermal stage). This stage is defined by large, well-formed crystals exceeding 1 cm in size, crystallized in open cavities. Diagnostic criteria include crystal size ≥ 1 cm and the absence of metasomatic replacement textures. The mineral assemblage comprises large, well-formed crystals of fluorite, barite, quartz, and pyrite.
Stage III (Supergene (oxidation/weathering)—post-ore stage). This stage is defined by near-surface alteration of earlier hypogene minerals. Diagnostic criteria include occurrence as crusts, coatings, or veins that physically crosscut Stages I and II.
Stage I (Primary hydrothermal—Early hydrothermal stage). This stage is defined by massive to metasomatic texture resulting from direct replacement of Neovariscan granite.
Stage II (Coarse-crystalline hydrothermal—late hydrothermal stage). This stage is defined by large, well-formed crystals exceeding 1 cm in size, crystallized in open cavities. Diagnostic criteria include crystal size ≥ 1 cm and the absence of metasomatic replacement textures. The mineral assemblage comprises large, well-formed crystals of fluorite, barite, quartz, and pyrite.
Stage III (Supergene (oxidation/weathering)—post-ore stage). This stage is defined by near-surface alteration of earlier hypogene minerals. Diagnostic criteria include occurrence as crusts, coatings, or veins that physically crosscut Stages I and II.
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
9 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 | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 9 - Silicates | |||
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| Unclassified | |||
| ⓘ | 'Alkali Feldspar' | - | |
| ⓘ | 'Amphibole Supergroup' | - | AB2C5(T8O22)W2 |
| ⓘ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| ⓘ | 'Plagioclase' | - | (Na,Ca)[(Si,Al)AlSi2]O8 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Amphibole Supergroup | AB2C5(T8O22)W2 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| F | Fluorine | |
| F | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| F | ⓘ Fluorite | CaF2 |
| Na | Sodium | |
| Na | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Mg | Magnesium | |
| Mg | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | Aluminium | |
| Al | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Si | Silicon | |
| Si | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| K | Potassium | |
| K | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Ti | Titanium | |
| Ti | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | Iron | |
| Fe | ⓘ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
Other Regions, Features and Areas containing this locality
AfricaContinent
African PlateTectonic Plate
- Atlas basinBasin
- Atlas MountainsMountain Range
Northwest Africa MeteoritesGroup of Meteorite Fall Locations
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]Cherai, Mohammed; Benamrane, Mohammed; Rddad, Larbi; Németh, Károly (2026) Granite-Hosted Fluorite–Barite Veins at Jbel Merguechoum (Northeastern Morocco): Paragenesis, Trace-Elements and REE Geochemistry, and Constraints on the Origin of Green and Purple Coloration. Geosciences, 16 (10). p.403. doi:10.3390/geosciences16100403
