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Bailundo, Bailundo, Huambo Province, Angolai
Regional Level Types
BailundoOccurrence
BailundoMunicipality
Huambo ProvinceProvince
AngolaCountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
12° 9' 0'' South , 15° 56' 59'' East
Latitude & Longitude (decimal):
-12.15000,15.95000
GeoHash:
G#: kmg6funmj
GRN:
S09E11
Type:
Occurrence
KΓΆppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
158061
Long-form identifier:
mindat:1:2:158061:0
GUID (UUID V4):
d81aecd2-6db6-439e-a507-262752b4abbf


Cretaceous calcite carbonatite, phoscorite and fenite, presently mined for magnetite at a small scale.

A circular pattern of hills of fenite define a 6 km diameter ring in the centre of which is a complex of carbonatites of lower relief.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


42 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:

β“˜ Aegirine
Formula: NaFe3+Si2O6
β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ 'Alkali pyroxene'
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
β“˜ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
β“˜ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
β“˜ Anatase
Formula: TiO2
β“˜ 'Ancylite'
β“˜ Anhydrite
Formula: CaSO4
β“˜ Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Beleque, A. R. C. (2010). Minerais de ETR no complexo carbonatΓ­tico de Bailundo (Mungo, Angola): ocorrΓͺncia, composição e significado econΓ³mico.
β“˜ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
β“˜ Baryte
Formula: BaSO4
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Beleque, A. R. C. (2010). Minerais de ETR no complexo carbonatΓ­tico de Bailundo (Mungo, Angola): ocorrΓͺncia, composição e significado econΓ³mico.
β“˜ 'BastnΓ€site'
Formula: (Ce/Nd/Y/REE)(CO3)F
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Beleque, A. R. C. (2010). Minerais de ETR no complexo carbonatΓ­tico de Bailundo (Mungo, Angola): ocorrΓͺncia, composição e significado econΓ³mico.
β“˜ Bradleyite
Formula: Na3Mg(CO3)(PO4)
β“˜ Brockite
Formula: (Ca,Th,Ce)PO4 · H2O
β“˜ Brookite
Formula: TiO2
β“˜ Calcite
Formula: CaCO3
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Beleque, A. R. C. (2010). Minerais de ETR no complexo carbonatΓ­tico de Bailundo (Mungo, Angola): ocorrΓͺncia, composição e significado econΓ³mico.
Castellano Calvo A, Melgarejo Draper J C, Kamenetsky V, Kamenetsky M (2014) Natrocarbonatite composition of melt inclusions from Bailundo and Longonjo carbonatites (Angola). 21 st meeting of the International Mineralogical Association. p 249
β“˜ Cerianite-(Ce)
Formula: (Ce4+,Th)O2
β“˜ Dolomite
Formula: CaMg(CO3)2
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
β“˜ Eitelite
Formula: Na2Mg(CO3)2
β“˜ Eudialyte
Formula: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
β“˜ 'Fergusonite'
β“˜ Ferrotychite
Formula: Na6(Fe,Mn,Mg)2(CO3)4(SO4)
β“˜ 'Fluocerite'
β“˜ Fluorapatite
Formula: Ca5(PO4)3F
β“˜ 'Gadolinite'
β“˜ 'Garnet Supergroup'
Formula: X3 Z2(TO4)3
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Gregoryite
Formula: (Na2,K2,Ca)CO3
β“˜ Halite
Formula: NaCl
β“˜ Hematite
Formula: Fe2O3
β“˜ Hibonite
Formula: CaAl12O19
β“˜ Hollandite
Formula: Ba(Mn4+6Mn3+2)O16
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
β“˜ Iimoriite-(Y)
Formula: Y2[SiO4][CO3]
β“˜ Ilmenite
Formula: Fe2+TiO3
β“˜ Kainosite-(Y)
Formula: Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
β“˜ Lepidocrocite
Formula: γ-Fe3+O(OH)
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Castellano Calvo A, Melgarejo Draper J C, Kamenetsky V, Kamenetsky M (2014) Natrocarbonatite composition of melt inclusions from Bailundo and Longonjo carbonatites (Angola). 21 st meeting of the International Mineralogical Association. p 249
β“˜ 'Monazite'
Formula: REE(PO4)
β“˜ Nepheline
Formula: Na3K(Al4Si4O16)
β“˜ Nyerereite
Formula: Na2Ca(CO3)2
β“˜ 'Parisite'
Formula: Ca(Ce/La/Nd/REE)2(CO3)3F2
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Beleque, A. R. C. (2010). Minerais de ETR no complexo carbonatΓ­tico de Bailundo (Mungo, Angola): ocorrΓͺncia, composição e significado econΓ³mico.
β“˜ Pyrite
Formula: FeS2
β“˜ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Beleque, A. R. C. (2010). Minerais de ETR no complexo carbonatΓ­tico de Bailundo (Mungo, Angola): ocorrΓͺncia, composição e significado econΓ³mico.
β“˜ 'Pyrochlore Group var. Zero valent dominant member of Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
β“˜ Rhabdophane-(Ce)
Formula: Ce(PO4) · 0.6H2O
β“˜ Rhabdophane-(Nd)
Formula: Nd(PO4) · H2O
β“˜ RomanΓ¨chite
Formula: (Ba,H2O)2(Mn4+,Mn3+)5O10
β“˜ Rutile
Formula: TiO2
β“˜ Shortite
Formula: Na2Ca2(CO3)3
β“˜ Stillwellite-(Ce)
Formula: (Ce,La,Ca)BSiO5
β“˜ Strontianite
Formula: SrCO3
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
β“˜ 'Synchysite'
Formula: Ca(Ce/Nd/Y/REE)(CO3)2F
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
β“˜ Synchysite-(Y)
Formula: CaY(CO3)2F
β“˜ Tetraferriphlogopite
Formula: KMg3(Fe3+Si3O10)(OH,F)2
References:
Lapido-Loureiro, F.E. 1973. Carbonatitos de Angola. Memorias e Trabalhos do Instituto de Investigacoes Cientifica de Angola, 11.
Allsopp, H. L., & Hargraves, R. B. (1985). Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa, 88(2), 295-299.
Issa Filho, A. B. R. M. D., 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(1-3), 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
β“˜ Titanite
Formula: CaTi(SiO4)O
β“˜ 'Xenotime'
β“˜ Zircon
Formula: Zr(SiO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Pyrite2.EB.05aFeS2
Group 3 - Halides
β“˜Halite3.AA.20NaCl
Group 4 - Oxides and Hydroxides
β“˜'Pyrochlore Group
var. Zero valent dominant member of Pyrochlore Group'		4.00.A2Nb2(O,OH)6Z
β“˜''4.00.A2Nb2(O,OH)6Z
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Ilmenite4.CB.05Fe2+TiO3
β“˜Hematite4.CB.05Fe2O3
β“˜Hibonite4.CC.45CaAl12O19
β“˜Rutile4.DB.05TiO2
β“˜Anatase4.DD.05TiO2
β“˜Brookite4.DD.10TiO2
β“˜Hollandite4.DK.05aBa(Mn4+6Mn3+2)O16
β“˜RomanΓ¨chite4.DK.10(Ba,H2O)2(Mn4+,Mn3+)5O10
β“˜Cerianite-(Ce)4.DL.05(Ce4+,Th)O2
β“˜Lepidocrocite4.FE.15Ξ³-Fe3+O(OH)
Group 5 - Nitrates and Carbonates
β“˜Gregoryite5.AA.10(Na2,K2,Ca)CO3
β“˜Calcite5.AB.05CaCO3
β“˜Dolomite5.AB.10CaMg(CO3)2
β“˜Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
β“˜Strontianite5.AB.15SrCO3
β“˜Eitelite5.AC.05Na2Mg(CO3)2
β“˜Nyerereite5.AC.10Na2Ca(CO3)2
β“˜Shortite5.AC.25Na2Ca2(CO3)3
β“˜Synchysite-(Y)5.BD.20cCaY(CO3)2F
β“˜Ferrotychite5.BF.05Na6(Fe,Mn,Mg)2(CO3)4(SO4)
β“˜Bradleyite5.BF.10Na3Mg(CO3)(PO4)
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Anhydrite7.AD.30CaSO4
β“˜Baryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Fluorapatite8.BN.05Ca5(PO4)3F
β“˜Rhabdophane-(Ce)8.CJ.45Ce(PO4) Β· 0.6H2O
β“˜Brockite8.CJ.45(Ca,Th,Ce)PO4 Β· H2O
β“˜Rhabdophane-(Nd)8.CJ.45Nd(PO4) Β· H2O
Group 9 - Silicates
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Titanite9.AG.15CaTi(SiO4)O
β“˜Iimoriite-(Y)9.AH.05Y2[SiO4][CO3]
β“˜Stillwellite-(Ce)9.AJ.25(Ce,La,Ca)BSiO5
β“˜Kainosite-(Y)9.CF.10Ca2(Y,Ce)2(Si4O12)(CO3) Β· H2O
β“˜Eudialyte9.CO.10Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
β“˜Aegirine9.DA.25NaFe3+Si2O6
β“˜Arfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
β“˜Tetraferriphlogopite9.EC.20KMg3(Fe3+Si3O10)(OH,F)2
β“˜Nepheline9.FA.05Na3K(Al4Si4O16)
β“˜Albite9.FA.35Na(AlSi3O8)
Unclassified
β“˜'Ancylite'-
β“˜'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
β“˜'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)
β“˜'Fergusonite'-
β“˜'Gadolinite'-
β“˜'Parisite'-Ca(Ce/La/Nd/REE)2(CO3)3F2
β“˜'Synchysite'-Ca(Ce/Nd/Y/REE)(CO3)2F
β“˜'Monazite'-REE(PO4)
β“˜'Xenotime'-
β“˜'BastnΓ€site'-(Ce/Nd/Y/REE)(CO3)F
β“˜'Fluocerite'-
β“˜'Garnet Supergroup'-X3 Z2(TO4)3
β“˜'Alkali pyroxene'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hβ“˜ Brockite(Ca,Th,Ce)PO4 · H2O
Hβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Hβ“˜ Lepidocrociteγ-Fe3+O(OH)
Hβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Hβ“˜ Rhabdophane-(Ce)Ce(PO4) · 0.6H2O
Hβ“˜ Rhabdophane-(Nd)Nd(PO4) · H2O
Hβ“˜ RomanΓ¨chite(Ba,H2O)2(Mn4+,Mn3+)5O10
Hβ“˜ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Hβ“˜ Pyrochlore Group var. Zero valent dominant member of Pyrochlore GroupA2Nb2(O,OH)6Z
Hβ“˜ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
BBoron
Bβ“˜ Stillwellite-(Ce)(Ce,La,Ca)BSiO5
CCarbon
Cβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Cβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Cβ“˜ BradleyiteNa3Mg(CO3)(PO4)
Cβ“˜ CalciteCaCO3
Cβ“˜ DolomiteCaMg(CO3)2
Cβ“˜ EiteliteNa2Mg(CO3)2
Cβ“˜ FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
Cβ“˜ Iimoriite-(Y)Y2[SiO4][CO3]
Cβ“˜ Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Cβ“˜ NyerereiteNa2Ca(CO3)2
Cβ“˜ ShortiteNa2Ca2(CO3)3
Cβ“˜ StrontianiteSrCO3
Cβ“˜ Synchysite-(Y)CaY(CO3)2F
Cβ“˜ Gregoryite(Na2,K2,Ca)CO3
Cβ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Cβ“˜ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
OOxygen
Oβ“˜ AegirineNaFe3+Si2O6
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oβ“˜ AnataseTiO2
Oβ“˜ AnhydriteCaSO4
Oβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Oβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oβ“˜ BaryteBaSO4
Oβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Oβ“˜ BradleyiteNa3Mg(CO3)(PO4)
Oβ“˜ Brockite(Ca,Th,Ce)PO4 · H2O
Oβ“˜ BrookiteTiO2
Oβ“˜ CalciteCaCO3
Oβ“˜ Cerianite-(Ce)(Ce4+,Th)O2
Oβ“˜ DolomiteCaMg(CO3)2
Oβ“˜ EiteliteNa2Mg(CO3)2
Oβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Oβ“˜ FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
Oβ“˜ FluorapatiteCa5(PO4)3F
Oβ“˜ Garnet SupergroupX3 Z2(TO4)3
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ HematiteFe2O3
Oβ“˜ HiboniteCaAl12O19
Oβ“˜ HollanditeBa(Mn64+Mn23+)O16
Oβ“˜ Iimoriite-(Y)Y2[SiO4][CO3]
Oβ“˜ IlmeniteFe2+TiO3
Oβ“˜ Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Oβ“˜ Lepidocrociteγ-Fe3+O(OH)
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ MonaziteREE(PO4)
Oβ“˜ NephelineNa3K(Al4Si4O16)
Oβ“˜ NyerereiteNa2Ca(CO3)2
Oβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Oβ“˜ Rhabdophane-(Ce)Ce(PO4) · 0.6H2O
Oβ“˜ Rhabdophane-(Nd)Nd(PO4) · H2O
Oβ“˜ RomanΓ¨chite(Ba,H2O)2(Mn4+,Mn3+)5O10
Oβ“˜ RutileTiO2
Oβ“˜ ShortiteNa2Ca2(CO3)3
Oβ“˜ Stillwellite-(Ce)(Ce,La,Ca)BSiO5
Oβ“˜ StrontianiteSrCO3
Oβ“˜ Synchysite-(Y)CaY(CO3)2F
Oβ“˜ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Oβ“˜ TitaniteCaTi(SiO4)O
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ Gregoryite(Na2,K2,Ca)CO3
Oβ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Oβ“˜ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Oβ“˜ Pyrochlore Group var. Zero valent dominant member of Pyrochlore GroupA2Nb2(O,OH)6Z
Oβ“˜ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
Fβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Fβ“˜ FluorapatiteCa5(PO4)3F
Fβ“˜ Synchysite-(Y)CaY(CO3)2F
Fβ“˜ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Fβ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Fβ“˜ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naβ“˜ AegirineNaFe3+Si2O6
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Naβ“˜ BradleyiteNa3Mg(CO3)(PO4)
Naβ“˜ EiteliteNa2Mg(CO3)2
Naβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Naβ“˜ FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
Naβ“˜ HaliteNaCl
Naβ“˜ NephelineNa3K(Al4Si4O16)
Naβ“˜ NyerereiteNa2Ca(CO3)2
Naβ“˜ ShortiteNa2Ca2(CO3)3
Naβ“˜ Gregoryite(Na2,K2,Ca)CO3
MgMagnesium
Mgβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Mgβ“˜ BradleyiteNa3Mg(CO3)(PO4)
Mgβ“˜ DolomiteCaMg(CO3)2
Mgβ“˜ EiteliteNa2Mg(CO3)2
Mgβ“˜ FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
Mgβ“˜ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alβ“˜ HiboniteCaAl12O19
Alβ“˜ NephelineNa3K(Al4Si4O16)
SiSilicon
Siβ“˜ AegirineNaFe3+Si2O6
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Siβ“˜ Iimoriite-(Y)Y2[SiO4][CO3]
Siβ“˜ Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Siβ“˜ NephelineNa3K(Al4Si4O16)
Siβ“˜ Stillwellite-(Ce)(Ce,La,Ca)BSiO5
Siβ“˜ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Siβ“˜ TitaniteCaTi(SiO4)O
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
PPhosphorus
Pβ“˜ BradleyiteNa3Mg(CO3)(PO4)
Pβ“˜ Brockite(Ca,Th,Ce)PO4 · H2O
Pβ“˜ FluorapatiteCa5(PO4)3F
Pβ“˜ MonaziteREE(PO4)
Pβ“˜ Rhabdophane-(Ce)Ce(PO4) · 0.6H2O
Pβ“˜ Rhabdophane-(Nd)Nd(PO4) · H2O
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sβ“˜ AnhydriteCaSO4
Sβ“˜ BaryteBaSO4
Sβ“˜ FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
Sβ“˜ PyriteFeS2
ClChlorine
Clβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Clβ“˜ HaliteNaCl
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ NephelineNa3K(Al4Si4O16)
Kβ“˜ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
Kβ“˜ Gregoryite(Na2,K2,Ca)CO3
CaCalcium
Caβ“˜ AnhydriteCaSO4
Caβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Caβ“˜ Brockite(Ca,Th,Ce)PO4 · H2O
Caβ“˜ CalciteCaCO3
Caβ“˜ DolomiteCaMg(CO3)2
Caβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Caβ“˜ FluorapatiteCa5(PO4)3F
Caβ“˜ HiboniteCaAl12O19
Caβ“˜ Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Caβ“˜ NyerereiteNa2Ca(CO3)2
Caβ“˜ ShortiteNa2Ca2(CO3)3
Caβ“˜ Stillwellite-(Ce)(Ce,La,Ca)BSiO5
Caβ“˜ Synchysite-(Y)CaY(CO3)2F
Caβ“˜ TitaniteCaTi(SiO4)O
Caβ“˜ Gregoryite(Na2,K2,Ca)CO3
Caβ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Caβ“˜ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiβ“˜ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiβ“˜ AnataseTiO2
Tiβ“˜ BrookiteTiO2
Tiβ“˜ IlmeniteFe2+TiO3
Tiβ“˜ RutileTiO2
Tiβ“˜ TitaniteCaTi(SiO4)O
MnManganese
Mnβ“˜ FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
Mnβ“˜ HollanditeBa(Mn64+Mn23+)O16
Mnβ“˜ RomanΓ¨chite(Ba,H2O)2(Mn4+,Mn3+)5O10
FeIron
Feβ“˜ AegirineNaFe3+Si2O6
Feβ“˜ AnkeriteCa(Fe2+,Mg)(CO3)2
Feβ“˜ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Feβ“˜ FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ HematiteFe2O3
Feβ“˜ IlmeniteFe2+TiO3
Feβ“˜ Lepidocrociteγ-Fe3+O(OH)
Feβ“˜ MagnetiteFe2+Fe23+O4
Feβ“˜ PyriteFeS2
Feβ“˜ TetraferriphlogopiteKMg3(Fe3+Si3O10)(OH,F)2
SrStrontium
Srβ“˜ StrontianiteSrCO3
YYttrium
Yβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Yβ“˜ Iimoriite-(Y)Y2[SiO4][CO3]
Yβ“˜ Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Yβ“˜ Synchysite-(Y)CaY(CO3)2F
Yβ“˜ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
ZrZirconium
Zrβ“˜ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Zrβ“˜ ZirconZr(SiO4)
NbNiobium
Nbβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Nbβ“˜ Pyrochlore Group var. Zero valent dominant member of Pyrochlore GroupA2Nb2(O,OH)6Z
BaBarium
Baβ“˜ BaryteBaSO4
Baβ“˜ HollanditeBa(Mn64+Mn23+)O16
Baβ“˜ RomanΓ¨chite(Ba,H2O)2(Mn4+,Mn3+)5O10
LaLanthanum
Laβ“˜ Stillwellite-(Ce)(Ce,La,Ca)BSiO5
Laβ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
CeCerium
Ceβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Ceβ“˜ Brockite(Ca,Th,Ce)PO4 · H2O
Ceβ“˜ Cerianite-(Ce)(Ce4+,Th)O2
Ceβ“˜ Kainosite-(Y)Ca2(Y,Ce)2(Si4O12)(CO3) · H2O
Ceβ“˜ Rhabdophane-(Ce)Ce(PO4) · 0.6H2O
Ceβ“˜ Stillwellite-(Ce)(Ce,La,Ca)BSiO5
Ceβ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Ceβ“˜ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
NdNeodymium
Ndβ“˜ BastnΓ€site(Ce/Nd/Y/REE)(CO3)F
Ndβ“˜ Rhabdophane-(Nd)Nd(PO4) · H2O
Ndβ“˜ ParisiteCa(Ce/La/Nd/REE)2(CO3)3F2
Ndβ“˜ SynchysiteCa(Ce/Nd/Y/REE)(CO3)2F
ThThorium
Thβ“˜ Brockite(Ca,Th,Ce)PO4 · H2O
Thβ“˜ Cerianite-(Ce)(Ce4+,Th)O2

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Bailundo
Wikidata ID:Q1619845

Other Regions, Features and Areas containing this locality

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.
Allsopp, H.L., Hargraves, R.B. (1985) Rb-Sr ages and palaeomagnetic data for some Angolan alkaline intrusives. Transactions of the Geological Society of South Africa: 88(2): 295-299.
Issa Filho, A.B.R.M.D., 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(1-3): 205-226. doi.org/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.org/10.1016/S0899-5362(99)00127-X
Woolley, A.R. (2001) Alkaline rocks and carbonatites of the world. Part 3: Africa. Geological Society. Natural History Museum, London: 16.
Orris, Greta J., Grauch, Richard I. (2002) Rare Earth Element Mines, Deposits, and Occurrences. Open-File Report 2002-189. US Geological Survey doi:10.3133/ofr02189
Beleque, A.R.C. (2010) Minerais de ETR no complexo carbonatΓ­tico de Bailundo (Mungo, Angola): ocorrΓͺncia, composição e significado econΓ³mico.
Castellano Calvo, A., Melgarejo Draper, J.C., Kamenetsky, V., Kamenetsky, M. (2014) Natrocarbonatite composition of melt inclusions from Bailundo and Longonjo carbonatites (Angola). 21 st meeting of the International Mineralogical Association: 249.
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