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Longonjo carbonatite intrusion, Longonjo, Huambo Province, Angolai
Regional Level Types
Longonjo carbonatite intrusionIntrusion
LongonjoMunicipality
Huambo ProvinceProvince
AngolaCountry

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Latitude & Longitude (WGS84):
12° 55' South , 15° 13' East
Latitude & Longitude (decimal):
-12.91667,15.21667
GeoHash:
G#: kmdyd286y
GRN:
S09E11
Type:
Intrusion
Köppen climate type:
BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Longonjo24,346 (2012)4.1km
Caála21,205 (2012)37.9km
Mindat Locality ID:
405887
Long-form identifier:
mindat:1:2:405887:1
GUID (UUID V4):
0


Carbonatite intrusion that forms a hill rising some 280 m above the surrounding peneplained Precambrian granite gneiss.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 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:

ⓘ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ 'Feldspar Group'
ⓘ 'Parisite'
Formula: Ca(Ce/La/Nd/REE)2(CO3)3F2
ⓘ Quartz
Formula: SiO2
ⓘ Strontianite
Formula: SrCO3
ⓘ 'Synchysite'
Formula: Ca(Ce/Nd/Y/REE)(CO3)2F

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘStrontianite5.AB.15SrCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Unclassified
ⓘ'Feldspar Group'-
ⓘ'Parisite'-Ca(Ce/La/Nd/REE)2(CO3)3F2
ⓘ'Synchysite'-Ca(Ce/Nd/Y/REE)(CO3)2F
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CCarbon
Cⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ StrontianiteSrCO3
Cⓘ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Cⓘ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
OOxygen
Oⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ QuartzSiO2
Oⓘ StrontianiteSrCO3
Oⓘ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Oⓘ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Fⓘ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mgⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgⓘ DolomiteCaMg(CO3)2
SiSilicon
Siⓘ QuartzSiO2
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ BaryteBaSO4
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
CaCalcium
Caⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Caⓘ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FeIron
Feⓘ AnkeriteCa(Fe2+,Mg)(CO3)2
SrStrontium
Srⓘ StrontianiteSrCO3
YYttrium
Yⓘ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
BaBarium
Baⓘ BaryteBaSO4
LaLanthanum
Laⓘ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
CeCerium
Ceⓘ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Ceⓘ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
NdNeodymium
Ndⓘ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Ndⓘ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F

Other Regions, Features and Areas containing this locality

AfricaContinent
African 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

Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
De Sousa Machado, F. J. (1958). The volcanic belt of Angola and its carbonatites: Comm. Coop. Tech. Africa, Pub, (44), 307-317.
Issa Filho, A., Dos Santos, A.B.R.M.D., Riffel, B.F., Lapido-Loureiro, F.E.V., McReath, I. (1991) Aspects of the geology, petrology and chemistry of some Angolan carbonatites. Journal of Geochemical Exploration, 40 (1) 205-226 doi:10.1016/0375-6742(91)90039-w
Alberti, A., Castorina, F., Censi, P., Comin-Chiaramonti, P., Gomes, C.B. (1999) Geochemical characteristics of Cretaceous carbonatites from Angola. Journal of African Earth Sciences, 29 (4) 735-759 doi:10.1016/s0899-5362(99)00127-x
Woolley, A. R. (2001) Alkaline Rocks and Carbonatites of the World, Part 3: Africa - Alkaline Rocks and Carbonatites of the World. The Geological Society of London.p.19
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