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Mt Nyiragongo, Goma, Nord-Kivu, DR Congoi
Regional Level Types
Mt NyiragongoMountain
Goma- not defined -
Nord-Kivu- not defined -
DR CongoCountry

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Latitude & Longitude (WGS84): 1° 31' 19'' South , 29° 14' 58'' East
Latitude & Longitude (decimal): -1.52199,29.24949
GeoHash:G#: kxsz3dfvf
Locality type:Mountain
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Goma144,124 (2012)17.1km
Gisenyi83,623 (2010)20.1km
Sake17,151 (2012)23.6km
Musanze86,685 (2016)42.9km
Other/historical names associated with this locality:Zaïre


Located north of Goma City near Lake Kivu. An active volcano.

Melilite and leucite nephelinite lava.

Regions containing this locality

African PlateTectonic Plate
Kivu, DR CongoRegion (Historical)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

35 valid minerals. 6 (TL) - type locality of valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Åkermanite
Formula: Ca2Mg(Si2O7)
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Andrémeyerite (TL)
Formula: BaFe2+2(Si2O7)
Type Locality:
Reference: Sahama, T.G., Siivola, J. and P. Rehtijärvi, P. (1973): Andremeyerite, a new barium iron silicate from Nyiragongo, Zaire. Bull. Geol. Soc. Finland, 45, 1-8.; Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
'Apatite'
Reference: Sahama, T. G. (1960). Kalsilite in the lavas of mt. Nyiragongo (Belgian Congo). Journal of Petrology, 1(2), 146-171.; Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.; Sahama, T.G., Siivola, J. and P. Rehtijärvi, P. (1973): Andremeyerite, a new barium iron silicate from Nyiragongo, Zaire. Bull. Geol. Soc. Finland, 45, 1-8.
Aphthitalite
Formula: (K,Na)3Na(SO4)2
Reference: Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980
Baryte
Formula: BaSO4
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
'Biotite'
Reference: Mineralogical Magazine (1958) 31 (2), 698-699.; Mineralogical Magazine 1957 31 : 698-699.
Calcite
Formula: CaCO3
Reference: Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.; Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Chlorbartonite ?
Formula: K6Fe24S26(Cl,S)
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
'Clinopyroxene Subgroup'
Reference: Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.
Combeite (TL)
Formula: Na4.5Ca3.5Si6O17.5(OH)0.5
Reference: Mineralogical Magazine 31 (1957) 698-699; Fischer, R.X. Tillmanns, E. (1983): Die Kristallstrukturen von natürlichem Na2Ca2Si3O9 vom Mt. Shaheru (Zaire) und aus dem Mayener Feld (Eifel), N. Jb. Mineral. Mh. 49-59.
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Reference: Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.
Cuspidine
Formula: Ca4(Si2O7)(F,OH)2
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Delhayelite (TL)
Formula: (Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Reference: Mineralogical Magazine(1959) 32, 6-9
Diopside
Formula: CaMgSi2O6
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Elpasolite
Formula: K2NaAlF6
Reference: Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980
'Fayalite-Forsterite Series'
Reference: Sahama, T. G. (1960). Kalsilite in the lavas of mt. Nyiragongo (Belgian Congo). Journal of Petrology, 1(2), 146-171.
Forsterite
Formula: Mg2SiO4
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Fresnoite
Formula: Ba2Ti(Si2O7)O
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
'Glass'
Description: Green glass.
Reference: Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, p. 497.; Herzog, G. F., Moynier, F., Albarède, F., & Berezhnoy, A. A. (2009). Isotopic and elemental abundances of copper and zinc in lunar samples, Zagami, Pele’s hairs, and a terrestrial basalt. Geochimica et Cosmochimica Acta, 73(19), 5884-5904.
Götzenite (TL)
Formula: NaCa6Ti(Si2O7)2OF3
Reference: Sahama, T. G. & Hytönen, K. (1957) Götzenite and combeite, two new silicates from the Belgian Congo. Mineralogical Magazine 31: 503-510; NJMM (2000), 496; Mineralogical Magazine 1957 31 : 698-699.
Gypsum
Formula: CaSO4 · 2H2O
Reference: Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980
Halite
Formula: NaCl
Reference: Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Hieratite
Formula: K2[SiF6]
Reference: Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980
'Hornblende'
Reference: Mineralogical Magazine (1958) 31 (2), 698-699.; Mineralogical Magazine 1957 31 : 698-699.
Kalsilite
Formula: KAlSiO4
Kirschsteinite (TL)
Formula: CaFe2+SiO4
Reference: Mineralogical Magazine (1958) 31 (2), 698-699.; Mineralogical Magazine 1957 31 : 698-699.
Leucite
Formula: K(AlSi2O6)
Reference: Strübel, Zimmer: "Lexikon der Minerale", 2nd Ed., 1991; Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.; Sahama, T. G. (1960). Kalsilite in the lavas of mt. Nyiragongo (Belgian Congo). Journal of Petrology, 1(2), 146-171.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Sahama, T.G., Siivola, J. and P. Rehtijärvi, P. (1973): Andremeyerite, a new barium iron silicate from Nyiragongo, Zaire. Bull. Geol. Soc. Finland, 45, 1-8.
Magnetite var: Titaniferous Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
Reference: Sahama, T. G. (1960). Kalsilite in the lavas of mt. Nyiragongo (Belgian Congo). Journal of Petrology, 1(2), 146-171.
'Melilite Group'
Formula: Ca2M(XSiO7)
Reference: Strübel, Zimmer: "Lexikon der Minerale", 2nd Ed., 1991; Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.; Sahama, T. G. (1960). Kalsilite in the lavas of mt. Nyiragongo (Belgian Congo). Journal of Petrology, 1(2), 146-171.
Nepheline
Formula: Na3K(Al4Si4O16)
Reference: Strübel, Zimmer: "Lexikon der Minerale", 2nd Ed., 1991; Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.; Sahama, T. G. (1960). Kalsilite in the lavas of mt. Nyiragongo (Belgian Congo). Journal of Petrology, 1(2), 146-171.
Perovskite
Formula: CaTiO3
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Pyrrhotite
Formula: Fe7S8
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.
Sanidine
Formula: K(AlSi3O8)
Reference: Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.
Sillimanite
Formula: Al2(SiO4)O
Reference: Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.
Sodalite
Formula: Na8(Al6Si6O24)Cl2
Spinel
Formula: MgAl2O4
Reference: Haapala, I. L. M. A. R. I. (2011). Th. G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland, 83, 41-55.
Sylvite
Formula: KCl
Reference: Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980
'Thénardite'
Formula: Na2SO4
Reference: Bailey, J. C: Formation of cryolite and other aluminofluorides: A petrologic review. Bull. geol. Soc. Denmark, vol. 29, pp. 1-45. Copenhagen, June 10th, 1980
Trikalsilite (TL)
Formula: (K,Na)AlSiO4
Type Locality:
Reference: Sahama T G, Smith J V (1957) Notes and news: Tri-kalsilite, a new mineral. American Mineralogist 42, 286-286
Troilite
Formula: FeS
Reference: Sahama, T.G., Siivola, J. and P. Rehtijärvi, P. (1973): Andremeyerite, a new barium iron silicate from Nyiragongo, Zaire. Bull. Geol. Soc. Finland, 45, 1-8.
Umbrianite
Formula: K7Na2Ca2[Al3Si10O29]F2Cl2
Reference: Andersen, T., Elburg, M. A., & Erambert, M. (2014). Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chlorbartonite ?2.FC.10K6Fe24S26(Cl,S)
Pyrrhotite2.CC.10Fe7S8
Troilite2.CC.10FeS
Group 3 - Halides
Elpasolite3.CB.15K2NaAlF6
Halite3.AA.20NaCl
Hieratite3.CH.15K2[SiF6]
Sylvite3.AA.20KCl
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
var: Titaniferous Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
Perovskite4.CC.30CaTiO3
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Aphthitalite7.AC.35(K,Na)3Na(SO4)2
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
'Thénardite'7.AC.25Na2SO4
Group 9 - Silicates
Andrémeyerite (TL)9.BB.20BaFe2+2(Si2O7)
Combeite (TL)9.CJ.15aNa4.5Ca3.5Si6O17.5(OH)0.5
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Cuspidine9.BE.17Ca4(Si2O7)(F,OH)2
Delhayelite (TL)9.EB.10(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Diopside9.DA.15CaMgSi2O6
Forsterite9.AC.05Mg2SiO4
Fresnoite9.BE.15Ba2Ti(Si2O7)O
Götzenite (TL)9.BE.22NaCa6Ti(Si2O7)2OF3
Hedenbergite9.DA.15CaFe2+Si2O6
Kalsilite9.FA.05KAlSiO4
Kirschsteinite (TL)9.AC.05CaFe2+SiO4
Leucite9.GB.05K(AlSi2O6)
Nepheline9.FA.05Na3K(Al4Si4O16)
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Sanidine9.FA.30K(AlSi3O8)
Sillimanite9.AF.05Al2(SiO4)O
Sodalite9.FB.10Na8(Al6Si6O24)Cl2
Trikalsilite (TL)9.FA.05(K,Na)AlSiO4
Åkermanite9.BB.10Ca2Mg(Si2O7)
Unclassified Minerals, Rocks, etc.
'Apatite'-
'Biotite'-
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
'Hornblende'-
'Melilite Group'-Ca2M(XSiO7)
Umbrianite-K7Na2Ca2[Al3Si10O29]F2Cl2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Troilite2.8.9.1FeS
Group 4 - SIMPLE OXIDES
A2X3
Perovskite4.3.3.1CaTiO3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Group 9 - NORMAL HALIDES
AX
Halite9.1.1.1NaCl
Sylvite9.1.1.2KCl
Group 11 - HALIDE COMPLEXES
AmBX6
Hieratite11.5.1.1K2[SiF6]
Aluminofluorides - Isolated Octahedra
Elpasolite11.6.2.1K2NaAlF6
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
A2XO4
Aphthitalite28.2.2.1(K,Na)3Na(SO4)2
'Thénardite'28.2.3.1Na2SO4
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Kirschsteinite (TL)51.3.2.2CaFe2+SiO4
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Sillimanite52.2.2a.1Al2(SiO4)O
Group 55 - SOROSILICATES Si2O7 Groups,Generally with no Additional Anions
Si2O7 Groups, Generally with No Additional Anions with cations in [8] and lower coordination
Fresnoite55.4.2.1Ba2Ti(Si2O7)O
Åkermanite55.4.1.1Ca2Mg(Si2O7)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] and/or >[4] coordination
Andrémeyerite (TL)56.2.6c.6BaFe2+2(Si2O7)
Cuspidine56.2.4.3Ca4(Si2O7)(F,OH)2
Götzenite (TL)56.2.5.4NaCa6Ti(Si2O7)2OF3
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Combeite (TL)61.1.2a.5Na4.5Ca3.5Si6O17.5(OH)0.5
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Hedenbergite65.1.3a.2CaFe2+Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with corrugated and complex layers
Delhayelite (TL)72.5.1.4(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Sanidine76.1.1.2K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
Kalsilite76.2.1.1KAlSiO4
Leucite76.2.2.1K(AlSi2O6)
Nepheline76.2.1.2Na3K(Al4Si4O16)
Sodalite76.2.3.1Na8(Al6Si6O24)Cl2
Trikalsilite (TL)76.2.1.3(K,Na)AlSiO4
Unclassified Minerals, Mixtures, etc.
'Apatite'-
'Biotite'-
Chlorbartonite ?-K6Fe24S26(Cl,S)
'Clinopyroxene Subgroup'-
'Fayalite-Forsterite Series'-
'Glass'-
'Hornblende'-
Magnetite
var: Titaniferous Magnetite
-Fe2+(Fe3+,Ti)2O4
'Melilite Group'-Ca2M(XSiO7)
Umbrianite-K7Na2Ca2[Al3Si10O29]F2Cl2

List of minerals for each chemical element

HHydrogen
H CombeiteNa4.5Ca3.5Si6O17.5(OH)0.5
H GypsumCaSO4 · 2H2O
H CuspidineCa4(Si2O7)(F,OH)2
H PhlogopiteKMg3(AlSi3O10)(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O AndrémeyeriteBaFe22+(Si2O7)
O Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
O CombeiteNa4.5Ca3.5Si6O17.5(OH)0.5
O GötzeniteNaCa6Ti(Si2O7)2OF3
O KirschsteiniteCaFe2+SiO4
O Trikalsilite(K,Na)AlSiO4
O Melilite GroupCa2M(XSiO7)
O LeuciteK(AlSi2O6)
O NephelineNa3K(Al4Si4O16)
O MagnetiteFe2+Fe23+O4
O KalsiliteKAlSiO4
O SodaliteNa8(Al6Si6O24)Cl2
O PerovskiteCaTiO3
O Aphthitalite(K,Na)3Na(SO4)2
O GypsumCaSO4 · 2H2O
O ThénarditeNa2SO4
O SillimaniteAl2(SiO4)O
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O SpinelMgAl2O4
O SanidineK(AlSi3O8)
O CalciteCaCO3
O Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
O UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
O CuspidineCa4(Si2O7)(F,OH)2
O PhlogopiteKMg3(AlSi3O10)(OH)2
O ForsteriteMg2SiO4
O BaryteBaSO4
O FresnoiteBa2Ti(Si2O7)O
O DiopsideCaMgSi2O6
O HedenbergiteCaFe2+Si2O6
O ÅkermaniteCa2Mg(Si2O7)
FFluorine
F Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
F GötzeniteNaCa6Ti(Si2O7)2OF3
F ElpasoliteK2NaAlF6
F HieratiteK2[SiF6]
F UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
F CuspidineCa4(Si2O7)(F,OH)2
NaSodium
Na Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Na CombeiteNa4.5Ca3.5Si6O17.5(OH)0.5
Na GötzeniteNaCa6Ti(Si2O7)2OF3
Na Trikalsilite(K,Na)AlSiO4
Na NephelineNa3K(Al4Si4O16)
Na SodaliteNa8(Al6Si6O24)Cl2
Na Aphthitalite(K,Na)3Na(SO4)2
Na ThénarditeNa2SO4
Na ElpasoliteK2NaAlF6
Na HaliteNaCl
Na UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg SpinelMgAl2O4
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg ForsteriteMg2SiO4
Mg DiopsideCaMgSi2O6
Mg ÅkermaniteCa2Mg(Si2O7)
AlAluminium
Al Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Al Trikalsilite(K,Na)AlSiO4
Al LeuciteK(AlSi2O6)
Al NephelineNa3K(Al4Si4O16)
Al KalsiliteKAlSiO4
Al SodaliteNa8(Al6Si6O24)Cl2
Al ElpasoliteK2NaAlF6
Al SillimaniteAl2(SiO4)O
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al SpinelMgAl2O4
Al SanidineK(AlSi3O8)
Al UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
Al PhlogopiteKMg3(AlSi3O10)(OH)2
SiSilicon
Si AndrémeyeriteBaFe22+(Si2O7)
Si Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Si CombeiteNa4.5Ca3.5Si6O17.5(OH)0.5
Si GötzeniteNaCa6Ti(Si2O7)2OF3
Si KirschsteiniteCaFe2+SiO4
Si Trikalsilite(K,Na)AlSiO4
Si Melilite GroupCa2M(XSiO7)
Si LeuciteK(AlSi2O6)
Si NephelineNa3K(Al4Si4O16)
Si KalsiliteKAlSiO4
Si SodaliteNa8(Al6Si6O24)Cl2
Si HieratiteK2[SiF6]
Si SillimaniteAl2(SiO4)O
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si SanidineK(AlSi3O8)
Si UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
Si CuspidineCa4(Si2O7)(F,OH)2
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si ForsteriteMg2SiO4
Si FresnoiteBa2Ti(Si2O7)O
Si DiopsideCaMgSi2O6
Si HedenbergiteCaFe2+Si2O6
Si ÅkermaniteCa2Mg(Si2O7)
SSulfur
S TroiliteFeS
S Aphthitalite(K,Na)3Na(SO4)2
S GypsumCaSO4 · 2H2O
S ThénarditeNa2SO4
S BaryteBaSO4
S PyrrhotiteFe7S8
S ChlorbartoniteK6Fe24S26(Cl,S)
ClChlorine
Cl Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Cl SodaliteNa8(Al6Si6O24)Cl2
Cl HaliteNaCl
Cl SylviteKCl
Cl UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
Cl ChlorbartoniteK6Fe24S26(Cl,S)
KPotassium
K Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
K Trikalsilite(K,Na)AlSiO4
K LeuciteK(AlSi2O6)
K NephelineNa3K(Al4Si4O16)
K KalsiliteKAlSiO4
K Aphthitalite(K,Na)3Na(SO4)2
K ElpasoliteK2NaAlF6
K SylviteKCl
K HieratiteK2[SiF6]
K SanidineK(AlSi3O8)
K UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
K PhlogopiteKMg3(AlSi3O10)(OH)2
K ChlorbartoniteK6Fe24S26(Cl,S)
CaCalcium
Ca Delhayelite(Na,K)10Ca5Al6Si32O80(Cl2,F2,SO4)3 · 18H2O
Ca CombeiteNa4.5Ca3.5Si6O17.5(OH)0.5
Ca GötzeniteNaCa6Ti(Si2O7)2OF3
Ca KirschsteiniteCaFe2+SiO4
Ca Melilite GroupCa2M(XSiO7)
Ca PerovskiteCaTiO3
Ca GypsumCaSO4 · 2H2O
Ca CalciteCaCO3
Ca UmbrianiteK7Na2Ca2[Al3Si10O29]F2Cl2
Ca CuspidineCa4(Si2O7)(F,OH)2
Ca DiopsideCaMgSi2O6
Ca HedenbergiteCaFe2+Si2O6
Ca ÅkermaniteCa2Mg(Si2O7)
TiTitanium
Ti GötzeniteNaCa6Ti(Si2O7)2OF3
Ti PerovskiteCaTiO3
Ti Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
Ti FresnoiteBa2Ti(Si2O7)O
FeIron
Fe AndrémeyeriteBaFe22+(Si2O7)
Fe KirschsteiniteCaFe2+SiO4
Fe MagnetiteFe2+Fe23+O4
Fe TroiliteFeS
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe Magnetite (var: Titaniferous Magnetite)Fe2+(Fe3+,Ti)2O4
Fe PyrrhotiteFe7S8
Fe HedenbergiteCaFe2+Si2O6
Fe ChlorbartoniteK6Fe24S26(Cl,S)
BaBarium
Ba AndrémeyeriteBaFe22+(Si2O7)
Ba BaryteBaSO4
Ba FresnoiteBa2Ti(Si2O7)O

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary
0 - 2.588 Ma



ID: 3190084
Cenozoic volcanic rocks

Age: Pleistocene (0 - 2.588 Ma)

Lithology: Mafic-intermediate undivided volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Neogene
2.588 - 23.03 Ma



ID: 3311454

Age: Neogene (2.588 - 23.03 Ma)

Lithology: Volcanic

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Sahama, T.G., Siivola, J. and P. Rehtijärvi, P. (1973) Andremeyerite, a new barium iron silicate from Nyiragongo, Zaire. Bull. Geol. Soc. Finland, 45, 1-8.
Haapala, I. (2011) Th.G. Sahama’s (1910–1983) volcanological and mineralogical studies in Africa: Part I. Expeditions to the Virunga Volcanic Field and petrological-mineralogical studies on the Nyiragongo volcano. Bulletin of the Geological Society of Finland 83, 41–55.
Andersen, T., Elburg, M. A., & Erambert, M. (2014) Extreme peralkalinity in delhayelite-and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. Lithos, 206, 164-178.

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