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

Roc Blanc deposit, Bour Cercle, Marrakech Prefecture, Marrakesh-Safi Region, Moroccoi
Regional Level Types
Roc Blanc depositDeposit
Bour CercleCercle
Marrakech PrefecturePrefecture
Marrakesh-Safi RegionRegion
MoroccoCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
05389750017272360358456.jpg
Ullmannite

Roc Blanc deposit, Bour Cercle, Marrakech Prefecture, Marrakesh-Safi Region, Morocco
05389750017272360358456.jpg
Ullmannite

Roc Blanc deposit, Bour Cercle, Marrakech Prefecture, Marrakesh-Safi Region, Morocco
05389750017272360358456.jpg
Ullmannite

Roc Blanc deposit, Bour Cercle, Marrakech Prefecture, Marrakesh-Safi Region, Morocco
Latitude & Longitude (WGS84):
31° 47' 54'' North , 8° 0' 39'' West
Latitude & Longitude (decimal):
31.79861,-8.01111
GRN:
N22W05
Type:
Deposit
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Marrakesh839,296 (2016)18.3km
Mindat Locality ID:
333067
Long-form identifier:
mindat:1:2:333067:1
GUID (UUID V4):
0


Pb-Zn-Ag-Au vein deposit in the Central Jebilet massif. It is spatially related to the metamorphic aureole of the Bramram-Tabouchennt-Bamega (BTB) granodioritic pluton (ca. 330 Ma).

Pb-Zn-Ag-Au ore is associated with quartz, chlorite, sericite, and carbonate gangue minerals. Two major stages of ore deposition were distinguished. The preore stage (stage I) comprises two quartz-mineralised vein generations with Fe, As, Zn, and Cu ores (vg1 and vg2). The main ore stage (stage II) consists mainly on Ag, Au, Pb, Zn, Cu, and Sb ores, which is hosted by carbonaceous vein (vg3) and by two late quartz generations veins (vg4 and vg5 with a geodic quartz).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


22 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ Andalusite
Formula: Al2(SiO4)O
ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ Arsenopyrite
Formula: FeAsS
ⓘ Boulangerite
Formula: Pb5Sb4S11
ⓘ Calcite
Formula: CaCO3
References:
Joan Rosell (2023)Identified by Joan Rosell: Visual Identification
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ Cordierite
Formula: Mg2Al4Si5O18
ⓘ 'Freibergite Subgroup'
Formula: (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
ⓘ Galena
Formula: PbS
ⓘ Marcasite
Formula: FeS2
ⓘ Miargyrite
Formula: AgSbS2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Silver
Formula: Ag
ⓘ Owyheeite
Formula: Ag3Pb10Sb11S28
ⓘ Polybasite
Formula: [Ag6Sb2S7][Ag9CuS4]
ⓘ Pyrargyrite
Formula: Ag3SbS3
ⓘ Pyrite
Formula: FeS2
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Siderite
Formula: FeCO3
ⓘ Sphalerite
Formula: ZnS
ⓘ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S
ⓘ 'Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite'
Formula: (Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
ⓘ Ullmannite
Formula: NiSbS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
ⓘUllmannite2.EB.25NiSbS
ⓘPyrargyrite2.GA.05Ag3SbS3
ⓘ'Freibergite Subgroup'2.GB.05(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
ⓘ'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
ⓘ'var. Silver-bearing Tetrahedrite'2.GB.05(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
ⓘPolybasite2.GB.15[Ag6Sb2S7][Ag9CuS4]
ⓘMiargyrite2.HA.10AgSbS2
ⓘBoulangerite2.HC.15Pb5Sb4S11
ⓘOwyheeite2.HC.35Ag3Pb10Sb11S28
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Group 9 - Silicates
ⓘAndalusite9.AF.10Al2(SiO4)O
ⓘCordierite9.CJ.10Mg2Al4Si5O18
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ CalciteCaCO3
Cⓘ SideriteFeCO3
OOxygen
Oⓘ AndalusiteAl2(SiO4)O
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ CalciteCaCO3
Oⓘ CordieriteMg2Al4Si5O18
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ SideriteFeCO3
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ CordieriteMg2Al4Si5O18
AlAluminium
Alⓘ AndalusiteAl2(SiO4)O
Alⓘ CordieriteMg2Al4Si5O18
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ AndalusiteAl2(SiO4)O
Siⓘ CordieriteMg2Al4Si5O18
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ ArsenopyriteFeAsS
Sⓘ BoulangeritePb5Sb4S11
Sⓘ ChalcopyriteCuFeS2
Sⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sⓘ GalenaPbS
Sⓘ MarcasiteFeS2
Sⓘ MiargyriteAgSbS2
Sⓘ OwyheeiteAg3Pb10Sb11S28
Sⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
Sⓘ PyrargyriteAg3SbS3
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sⓘ UllmanniteNiSbS
Sⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Feⓘ ArsenopyriteFeAsS
Feⓘ ChalcopyriteCuFeS2
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SideriteFeCO3
Feⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
NiNickel
Niⓘ UllmanniteNiSbS
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Cuⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
Cuⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Cuⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
ZnZinc
Znⓘ SphaleriteZnS
Znⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
AsArsenic
Asⓘ ArsenopyriteFeAsS
AgSilver
Agⓘ AcanthiteAg2S
Agⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Agⓘ MiargyriteAgSbS2
Agⓘ OwyheeiteAg3Pb10Sb11S28
Agⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
Agⓘ PyrargyriteAg3SbS3
Agⓘ Native SilverAg
Agⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
SbAntimony
Sbⓘ BoulangeritePb5Sb4S11
Sbⓘ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sbⓘ MiargyriteAgSbS2
Sbⓘ OwyheeiteAg3Pb10Sb11S28
Sbⓘ Polybasite[Ag6Sb2S7][Ag9CuS4]
Sbⓘ PyrargyriteAg3SbS3
Sbⓘ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sbⓘ UllmanniteNiSbS
Sbⓘ Tetrahedrite Subgroup var. Silver-bearing Tetrahedrite(Cu,Ag)6[Cu4(Fe,Zn)2]Sb4S13
PbLead
Pbⓘ BoulangeritePb5Sb4S11
Pbⓘ GalenaPbS
Pbⓘ OwyheeiteAg3Pb10Sb11S28

Other Regions, Features and Areas containing this locality

AfricaContinent
African PlateTectonic Plate
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

El Arbaoui, Amal & Amina, Wafik & N'Diaye, Ismaïla & Maacha, L. & Zouhair, Mohamed & Abdelmalek, Ouadjou & Radnaoui, Ahmed (2015) Fluids and ore genesis Mineralogical Evolution of the Polymetallic Vein Mineralization at the Roc Blanc Silver Deposit (Jebilet Massif, Variscan Belt, Morocco). SGA Meeting 2015, Proceedings, Vol. 2, 449-452.
El Arbaoui, Amal, N’Diaye, Ismaïla, Hajjar, Zaineb, Wafik, Amina, Boutaleb, Abdelhak, Ilmen, Said, Essaifi, Abderrahim, Bouabdellah, Mohammed (2022) Fluid Origin and Evolution of the Roc Blanc Silver Deposit (Jebilet Massif, Variscan Belt, Morocco): Constraints from Geology and Fluid Inclusions. Geofluids, 2022. 1-22 doi:10.1155/2022/3882516
Quick NavTopMineral ListRock TypesOther RegionsReferences
 
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 19, 2026 12:27:10 Page updated: January 10, 2026 15:17:20
Go to top of page