Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Wu dyke, Dulahala, Bayan Obo mining district, Baotou City, Inner Mongolia, Chinai
Regional Level Types
Wu dykeDike
Dulahala- not defined -
Bayan Obo mining districtMining District
Baotou CityPrefecture-level City
Inner MongoliaAutonomous Region
ChinaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
41° 49' 12'' North , 110° 0' 56'' East
Latitude & Longitude (decimal):
41.82020,110.01580
GRN:
N28E60
Type:
Dike
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Mindat Locality ID:
185579
Long-form identifier:
mindat:1:2:185579:4
GUID (UUID V4):
0


A carbonatite dyke, emplaced along a fault that separates coarse quartz sandstone from shale, both members of the Middle Proterozoic Bayan Obo Group. The dyke, which was named for its discoverer, is well exposed over a length of 60 m. It is 1.1-1.5 m wide, strikes NE and dips NW at an angle of about 85°. The wall rocks on both sides are fenitized to a width of 10-20 cm and this alkaline mineralization extends along fractures and joints into the adjacent sandstone, for up to 30 m away from the contact zone. The dyke was affected by later tectonism and is strongly deformed and sheared sub-parallel to the dyke walls.

Located at Dulahala, about 2 km NNE of the East orebody.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


18 valid minerals.

Rock Types Recorded


Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
ⓘ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘ Baryte
Formula: BaSO4
ⓘ 'Bastnäsite'
Formula: (Ce/Nd/Y/REE)(CO3)F
ⓘ Bastnäsite-(Ce)
Formula: Ce(CO3)F
ⓘ Calcite
Formula: CaCO3
ⓘ Cebaite-(Ce)
Formula: Ba3Ce2(CO3)5F2
ⓘ Cordylite-(Ce)
Formula: NaBaCe2(CO3)4F
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Fluorite
Formula: CaF2
ⓘ Hematite
Formula: Fe2O3
ⓘ Huanghoite-(Ce)
Formula: BaCe(CO3)2F
ⓘ Magnesio-riebeckite
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Parisite-(Ce)
Formula: CaCe2(CO3)3F2
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘCordylite-(Ce)5.BD.05NaBaCe2(CO3)4F
ⓘCebaite-(Ce)5.BD.15Ba3Ce2(CO3)5F2
ⓘBastnäsite-(Ce)5.BD.20aCe(CO3)F
ⓘParisite-(Ce)5.BD.20bCaCe2(CO3)3F2
ⓘHuanghoite-(Ce)5.BD.35BaCe(CO3)2F
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘArfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘMagnesio-riebeckite9.DE.25◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Bastnäsite'-(Ce/Nd/Y/REE)(CO3)F
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
CCarbon
Cⓘ Bastnäsite-(Ce)Ce(CO3)F
Cⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Cⓘ CalciteCaCO3
Cⓘ Cebaite-(Ce)Ba3Ce2(CO3)5F2
Cⓘ Cordylite-(Ce)NaBaCe2(CO3)4F
Cⓘ DolomiteCaMg(CO3)2
Cⓘ Huanghoite-(Ce)BaCe(CO3)2F
Cⓘ Parisite-(Ce)CaCe2(CO3)3F2
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oⓘ BaryteBaSO4
Oⓘ Bastnäsite-(Ce)Ce(CO3)F
Oⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Oⓘ CalciteCaCO3
Oⓘ Cebaite-(Ce)Ba3Ce2(CO3)5F2
Oⓘ Cordylite-(Ce)NaBaCe2(CO3)4F
Oⓘ DolomiteCaMg(CO3)2
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ HematiteFe2O3
Oⓘ Huanghoite-(Ce)BaCe(CO3)2F
Oⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ Monazite GroupREE(PO4)
Oⓘ Parisite-(Ce)CaCe2(CO3)3F2
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
Fⓘ Bastnäsite-(Ce)Ce(CO3)F
Fⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Fⓘ Cebaite-(Ce)Ba3Ce2(CO3)5F2
Fⓘ Cordylite-(Ce)NaBaCe2(CO3)4F
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ FluoriteCaF2
Fⓘ Huanghoite-(Ce)BaCe(CO3)2F
Fⓘ Parisite-(Ce)CaCe2(CO3)3F2
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Naⓘ Cordylite-(Ce)NaBaCe2(CO3)4F
Naⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ Monazite GroupREE(PO4)
SSulfur
Sⓘ BaryteBaSO4
KPotassium
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ FluoriteCaF2
Caⓘ Parisite-(Ce)CaCe2(CO3)3F2
FeIron
Feⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feⓘ HematiteFe2O3
Feⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
YYttrium
Yⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
BaBarium
Baⓘ BaryteBaSO4
Baⓘ Cebaite-(Ce)Ba3Ce2(CO3)5F2
Baⓘ Cordylite-(Ce)NaBaCe2(CO3)4F
Baⓘ Huanghoite-(Ce)BaCe(CO3)2F
CeCerium
Ceⓘ Bastnäsite-(Ce)Ce(CO3)F
Ceⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Ceⓘ Cebaite-(Ce)Ba3Ce2(CO3)5F2
Ceⓘ Cordylite-(Ce)NaBaCe2(CO3)4F
Ceⓘ Huanghoite-(Ce)BaCe(CO3)2F
Ceⓘ Parisite-(Ce)CaCe2(CO3)3F2
NdNeodymium
Ndⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian PlateTectonic Plate

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

Yang, X.-M., Yang, X.-Y., Zheng, Y.-F., Le Bas, M. J. (2003) A rare earth element-rich carbonatite dyke at Bayan Obo, Inner Mongolia, North China. Mineralogy and Petrology, 78 (1) 93-110 doi:10.1007/s00710-002-0220-5
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: September 7, 2026 08:12:20 Page updated: March 24, 2026 10:40:49
Go to top of page