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

Wigu Hill REE deposit, Morogoro Rural District, Morogoro Region, Tanzaniai
Regional Level Types
Wigu Hill REE depositDeposit
Morogoro Rural DistrictMunicipality
Morogoro RegionRegion
TanzaniaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
7° 25' 59'' South , 37° 34' 0'' East
Latitude & Longitude (decimal):
-7.43333,37.56667
GRN:
S05E27
Type:
Deposit
Köppen climate type:
Aw : Tropical savanna, wet
Nearest Settlements:
PlacePopulationDistance
Kisanga10,978 (2016)15.1km
Mindat Locality ID:
262106
Long-form identifier:
mindat:1:2:262106:0
GUID (UUID V4):
0


A large carbonatite complex located 170 km south-west of Dar es Salaam, and 68 km south of Morogoro. The goyazite-bearing dolomitic carbonatite is located near the village of Kisaki.

Wigu comprises a series of sheeted intrusions of carbonatite and carbonatite breccia into basement gneisses over an area of over 5,000 m (east-west) by 1,500 m. Carbonation of the gneisses is observed in places close to the intrusive contacts. Fenitisation of the gneisses involved the growth of aegirine and alkali feldspar in the gneisses, often accompanied by hematite. Signs of fenitisation are recognised 15 km from carbonatite outcrops. Foliations in the gneisses define a domal structure over the area of carbonatite intrusion.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


10 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:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ 'Alkali Feldspar'
ⓘ Baryte
Formula: BaSO4
ⓘ 'Bastnäsite'
Formula: (Ce/Nd/Y/REE)(CO3)F
ⓘ Burbankite
Formula: (Na,Ca)3(Sr,Ba,Ce)3(CO3)5
ⓘ Calcite
Formula: CaCO3
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Dolomite var. Iron-bearing Dolomite
Formula: Ca(Mg,Fe)(CO3)2
ⓘ Goyazite
Formula: SrAl3(PO4)(PO3OH)(OH)6
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘvar. Iron-bearing Dolomite5.AB.10Ca(Mg,Fe)(CO3)2
ⓘBurbankite5.AC.30(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘGoyazite8.BL.10SrAl3(PO4)(PO3OH)(OH)6
Group 9 - Silicates
ⓘAegirine9.DA.25NaFe3+Si2O6
Unclassified
ⓘ'Alkali Feldspar'-
ⓘ'Bastnäsite'-(Ce/Nd/Y/REE)(CO3)F
ⓘ'Monazite Group'-REE(PO4)

List of minerals for each chemical element

HHydrogen
Hⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
CCarbon
Cⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Cⓘ Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ BaryteBaSO4
Oⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Oⓘ Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Oⓘ HematiteFe2O3
Oⓘ Monazite GroupREE(PO4)
Oⓘ QuartzSiO2
Oⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
FFluorine
Fⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
AlAluminium
Alⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ QuartzSiO2
PPhosphorus
Pⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Pⓘ Monazite GroupREE(PO4)
SSulfur
Sⓘ BaryteBaSO4
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ HematiteFe2O3
Feⓘ PyriteFeS2
Feⓘ Dolomite var. Iron-bearing DolomiteCa(Mg,Fe)(CO3)2
ZnZinc
Znⓘ SphaleriteZnS
SrStrontium
Srⓘ Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Srⓘ GoyaziteSrAl3(PO4)(PO3OH)(OH)6
YYttrium
Yⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
BaBarium
Baⓘ BaryteBaSO4
Baⓘ Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
CeCerium
Ceⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Ceⓘ Burbankite(Na,Ca)3(Sr,Ba,Ce)3(CO3)5
NdNeodymium
Ndⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Somali PlateTectonic Plate
Tanzania

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

McKie, Duncan (1962) Goyazite and florencite from two African carbonatites. Mineralogical Magazine and Journal of the Mineralogical Society, 33 (259) 281-297 doi:10.1180/minmag.1962.033.259.03
www.monteromining.com (n.d.) http://www.monteromining.com/projects/wigu.html
Harmer, R.E., Nex, P.A.M. (2016) Rare Earth Deposits of Africa. Episodes, 39 (2) 381-406 doi:10.18814/epiiugs/2016/v39i2/95784
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 03:09:34 Page updated: December 15, 2025 14:04:36
Go to top of page