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Balombo occurrence, Balombo, Benguela Province, Angolai
Regional Level Types
Balombo occurrenceOccurrence
BalomboMunicipality
Benguela ProvinceProvince
AngolaCountry

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Latitude & Longitude (WGS84):
12° 20' 59'' South , 14° 45' 0'' East
Latitude & Longitude (decimal):
-12.35000,14.75000
GRN:
S09E11
Type:
Occurrence
Kรถppen climate type:
BSh : Hot semi-arid (steppe) climate
Mindat Locality ID:
405883
Long-form identifier:
mindat:1:2:405883:3
GUID (UUID V4):
0


Essexite, nepheline monzonite and nepheline syenite from Balombo centre (Andrade 1954).

It is not clear if Nonga is synonymous with Balombo or a different locality, but it is described by Andrade (1959) as NW of Balombo (alkali feldspar, aegirine, analcime, aenigmatite, magnetite).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 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:

โ“˜ Albite
Formula: Na(AlSi3O8)
โ“˜ Albite var. Andesine
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
โ“˜ Albite var. Anorthoclase
Formula: (Na,K)AlSi3O8
โ“˜ Albite var. Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
โ“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
โ“˜ Augite var. Titanium-bearing Augite
Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
โ“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜ Cancrinite
Formula: (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
โ“˜ Fayalite
Formula: Fe2+2SiO4
โ“˜ 'Feldspar Group'
โ“˜ 'Hornblende Root Name Group'
Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
โ“˜ Nepheline
Formula: Na3K(Al4Si4O16)
โ“˜ Orthoclase
Formula: K(AlSi3O8)
โ“˜ 'Pyroxene Group'
Formula: ADSi2O6
โ“˜ Sodalite
Formula: Na4(Si3Al3)O12Cl
โ“˜ 'Sodic amphibole'
โ“˜ 'Zeolite Group'

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
โ“˜Fayalite9.AC.05Fe2+2SiO4
โ“˜Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
โ“˜var. Titanium-bearing Augite9.DA.15(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
โ“˜Nepheline9.FA.05Na3K(Al4Si4O16)
โ“˜Orthoclase9.FA.30K(AlSi3O8)
โ“˜Albite9.FA.35Na(AlSi3O8)
โ“˜var. Andesine9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
โ“˜var. Anorthoclase9.FA.35(Na,K)AlSi3O8
โ“˜var. Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
โ“˜Cancrinite9.FB.05(Na,Ca,โ—ป)8(Al6Si6O24)(CO3,SO4)2 ยท 2H2O
โ“˜Sodalite9.FB.10Na4(Si3Al3)O12Cl
โ“˜'Zeolite Group'9.G0.
Unclassified
โ“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
โ“˜'Feldspar Group'-
โ“˜'Hornblende Root Name Group'-โ—ปCa2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
โ“˜'Pyroxene Group'-ADSi2O6
โ“˜'Sodic amphibole'-

List of minerals for each chemical element

HHydrogen
Hโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Hโ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
CCarbon
Cโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
OOxygen
Oโ“˜ AlbiteNa(AlSi3O8)
Oโ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Oโ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Oโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Oโ“˜ FayaliteFe22+SiO4
Oโ“˜ NephelineNa3K(Al4Si4O16)
Oโ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Oโ“˜ OrthoclaseK(AlSi3O8)
Oโ“˜ SodaliteNa4(Si3Al3)O12Cl
Oโ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Oโ“˜ Pyroxene GroupADSi2O6
Oโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
FFluorine
Fโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fโ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
NaSodium
Naโ“˜ AlbiteNa(AlSi3O8)
Naโ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Naโ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Naโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Naโ“˜ NephelineNa3K(Al4Si4O16)
Naโ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Naโ“˜ SodaliteNa4(Si3Al3)O12Cl
Naโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
MgMagnesium
Mgโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
AlAluminium
Alโ“˜ AlbiteNa(AlSi3O8)
Alโ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Alโ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Alโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Alโ“˜ NephelineNa3K(Al4Si4O16)
Alโ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Alโ“˜ OrthoclaseK(AlSi3O8)
Alโ“˜ SodaliteNa4(Si3Al3)O12Cl
Alโ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Alโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
SiSilicon
Siโ“˜ AlbiteNa(AlSi3O8)
Siโ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Siโ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Siโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Siโ“˜ FayaliteFe22+SiO4
Siโ“˜ NephelineNa3K(Al4Si4O16)
Siโ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Siโ“˜ OrthoclaseK(AlSi3O8)
Siโ“˜ SodaliteNa4(Si3Al3)O12Cl
Siโ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Siโ“˜ Pyroxene GroupADSi2O6
Siโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
SSulfur
Sโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ClChlorine
Clโ“˜ SodaliteNa4(Si3Al3)O12Cl
Clโ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
KPotassium
Kโ“˜ Albite var. Anorthoclase(Na,K)AlSi3O8
Kโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kโ“˜ NephelineNa3K(Al4Si4O16)
Kโ“˜ OrthoclaseK(AlSi3O8)
CaCalcium
Caโ“˜ Albite var. Andesine(Na,Ca)[Al(Si,Al)Si2O8]
Caโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caโ“˜ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Caโ“˜ Albite var. Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
Caโ“˜ Hornblende Root Name Group◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2
Caโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
TiTitanium
Tiโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6
FeIron
Feโ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feโ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feโ“˜ FayaliteFe22+SiO4
Feโ“˜ Augite var. Titanium-bearing Augite(Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6

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. 1967. Consideracoes sobre o quimismo dos sienitos nefelinicos. Breves referencias a rochas alcalinas de Angola e ao seu interesse economico. Boletim do Instituto de Investigacao Cientifica de Angola, 4, 37-65.
de Andrade, M. (1954) Contribution a l'รฉtude des roches alcalines d'Angola (note preliminaire). In: 19th International Geological Congress, Algiers. Comptes Rendus: 19: 241-252.
de Andrade, M.M. (1959) Analise quimicas de rochas eruptivas de Angola, publicadas ate fins de 1959. Publicacoes do Museu e Laboratorio Mineralogico e Geologico da Faculdade de Ciencias do Porto: 4 Serie: 76.
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.17
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