Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography
This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
Latitude & Longitude (WGS84):
32° 57' 36'' North , 4° 19' 48'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Midelt45,159 (2016)49.4km
Mindat Locality ID:
212620
Long-form identifier:
mindat:1:2:212620:6
GUID (UUID V4):
0


A Tertiary lacutrine formation of significant commercial interest. The clay occurs as <2 micron grains in "Formation Rouge" rock composed of detrital material derived from erosion of Jurassic to Cretaceous marine sediments; primarily marls and mudstones, interbedded with chalky dolomite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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


Mineral List


7 valid minerals.

Detailed Mineral List:

ⓘ Celestine
Formula: SrSO4
ⓘ 'Chlorite Group'
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Muscovite ?
Formula: KAl2(AlSi3O10)(OH)2
Description: Maybe the same as the smectite in the 2009 reference.
ⓘ Muscovite var. Illite ?
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
Description: Maybe the same as the smectite in the 2009 reference.
ⓘ Palygorskite ?
Formula: ◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Description: Maybe the same as the smectite in the 2009 reference
ⓘ Quartz
Formula: SiO2
ⓘ Stevensite
Formula: (Ca,Na)xMg3-x(Si4O10)(OH)2

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘDolomite5.AB.10CaMg(CO3)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘCelestine7.AD.35SrSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
ⓘMuscovite
var. Illite ?
9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ ?9.EC.15KAl2(AlSi3O10)(OH)2
ⓘStevensite9.EC.45(Ca,Na)xMg3-x(Si4O10)(OH)2
ⓘPalygorskite ?9.EE.20◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Hⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
CCarbon
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ CelestineSrSO4
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Oⓘ QuartzSiO2
Oⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
NaSodium
Naⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Mgⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
AlAluminium
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
SiSilicon
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Palygorskite◻Al2Mg2◻2Si8O20(OH)2(H2O)4 · 4H2O
Siⓘ QuartzSiO2
Siⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
SSulfur
Sⓘ CelestineSrSO4
Sⓘ GypsumCaSO4 · 2H2O
KPotassium
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ DolomiteCaMg(CO3)2
Caⓘ GypsumCaSO4 · 2H2O
Caⓘ Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
SrStrontium
Srⓘ CelestineSrSO4

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
Morocco
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

 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 20, 2026 01:08:45 Page updated: July 31, 2026 19:48:58
Go to top of page