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Los Archipelago (Los Islands), Conakry Region, Guineai
Regional Level Types
Los Archipelago (Los Islands)Archipelago
Conakry RegionRegion
GuineaCountry

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PhotosMapsSearch
05817650016000051208644.jpg
Aerial view of Rouma Island

Rouma Island, Los Archipelago, Conakry Region, Guinea
01866100014964172198796.jpg
Aegirine

Los Archipelago, Conakry Region, Guinea
02326700014964172198793.jpg
Catapleiite

Los Archipelago, Conakry Region, Guinea
09581070015998564811741.jpg
Aerial view of Rouma Island

Rouma Island, Los Archipelago, Conakry Region, Guinea
01866100014964172198796.jpg
Aegirine

Los Archipelago, Conakry Region, Guinea
02326700014964172198793.jpg
Catapleiite

Los Archipelago, Conakry Region, Guinea
07633680015998586428667.jpg
Aerial view of Rouma Island

Rouma Island, Los Archipelago, Conakry Region, Guinea
01866100014964172198796.jpg
Aegirine

Los Archipelago, Conakry Region, Guinea
Type:
Archipelago
Age:
104.3 ± 1.7 Ma
Geologic Time:
Early/Lower Cretaceous
Dating method:
Rb-Sr whole rock
Reference for age:
Moreau, C., Ohnenstetter, D., Demaiffe, D., Robineau, B. (1996) The Los Archipelago nepheline syenite ring-structure: a magmatic marker of the evolution of the central and equatorial Atlantic. Canadian Mineralogist: 34: 281-299.
Mindat Locality ID:
13674
Long-form identifier:
mindat:1:2:13674:2
GUID (UUID V4):
7c5cddeb-602e-40a4-9104-c9ea2f795392
Other Languages:
View 8 more...
French:
Îles de Los, Conakry, Guinée
German:
Îles de Los, Conakry, Guinea
Italian:
Isole di Los, Conakry, Guinea
Spanish:
Islas de Los, Conakri, Guinea
Catalan:
illes de Los, Conakry, Guinea
Cebuano:
Îles de Los, Conakry Region, Guinea
Dutch:
Îles de Los, Conakry, Guinea
Greek:
Νησιά Λος, Κονακρί, Γουινέα
Japanese:
ロス諸島, コナクリ, ギニア
Norwegian:
Îles de Los, Conakry, Guinea
Polish:
Los, Konakry, Gwinea
Swedish:
Îles de Los, Conakry, Guinea


Los Archipelago is located 5 km offshore of Conakry, located on Kaloum Peninsula. It is a ring structure formed by peralkaline nepheline syenites and later phonolitic dykes and pegmatites. The Los ring-structure, the Los complex is 12 km in diameter and 115km2.

Two magmatic suites are known : one is miaskitic, the other is agpaitic. The difference between this two kind of petrographic suite is linked to the different mineralogy (augite, hastingsite, zircon, titanite in the miaskitic one; aegirina, arfvedsonite, Zr-Ti-Nb-REE silicates for the agpaitic suite).

Iles de Los are the type locality for villiaumite and serandite, described by Lacroix in 1908 and 1931 respectively.

Odinite was discovered in sea floor sediments at the mouth of the Koukoure (Konkouré) River near the islands.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

56 valid minerals. 4 (TL) - type locality of valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: 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:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Amphibole Supergroup'
Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
ⓘ Andradite
Formula: Ca3Fe3+2(SiO4)3
ⓘ Andradite var. Melanite
Formula: Ca3(Fe3+,Ti)2(SiO4)3
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Arfvedsonite
Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘ Astrophyllite
Formula: K2NaFe2+7Ti2Si8O26(OH)4F
ⓘ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘ 'Barkevikite'
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Britholite-(Ce)
Formula: (Ce,Ca)5(SiO4)3OH
ⓘ Calcite
Formula: CaCO3
ⓘ Cancrinite
Formula: (Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ⓘ Catapleiite
Formula: Na2Zr(Si3O9) · 2H2O
ⓘ 'Chlorite Group'
ⓘ Eudialyte
Formula: Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘ 'Fayalite-Forsterite Series'
ⓘ 'Feldspar Group'
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ 'Feldspar Group var. Perthite'
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
ⓘ Fluorite
Formula: CaF2
ⓘ Galena
Formula: PbS
ⓘ Gibbsite
Formula: Al(OH)3
ⓘ Grossular
Formula: Ca3Al2(SiO4)3
ⓘ 'Hackmanite'
Formula: Na8Al6Si6O24(Cl2,S)
ⓘ Hastingsite
Formula: NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2
ⓘ Haüyne
Formula: Na3Ca(Si3Al3)O12(SO4)
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Hiortdahlite
Formula: Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
ⓘ 'Hiortdahlite II'
Formula: (Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Description: Biagioni et al. (2012) has showed that the identification of hiortdahlite II given by Robles et al. (2001) is not correct, it is hiorthdahlite I.
ⓘ Ilmenite
Formula: Fe2+TiO3
ⓘ Kaolinite
Formula: Al2(Si2O5)(OH)4
ⓘ 'K Feldspar'
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Kupletskite
Formula: (K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
ⓘ Låvenite
Formula: Na2Ca2Mn2Zr2(Si2O7)2O2F2
ⓘ Leucophanite
Formula: NaCaBeSi2O6F
ⓘ Löllingite
Formula: FeAs2
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ 'Mica Group'
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Molybdenite
Formula: MoS2
ⓘ Mosandrite-(Ce)
Formula: (Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Illite
Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ Nacareniobsite-(Ce)
Formula: Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
ⓘ Natrolite
Formula: Na2Al2Si3O10 · 2H2O
ⓘ Nepheline
Formula: Na3K(Al4Si4O16)
ⓘ Normandite
Formula: NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
ⓘ Nosean
Formula: Na8(Al6Si6O24)(SO4) · H2O
References:
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Odinite (TL)
Formula: (Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Type Locality:
ⓘ Oneillite
Formula: Na15Ca3Mn3Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
ⓘ Orthoclase
Formula: K(AlSi3O8)
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
ⓘ Pyrophanite
Formula: Mn2+TiO3
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
References:
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure
ⓘ Pyrrhotite
Formula: Fe1-xS
ⓘ Quartz
Formula: SiO2
ⓘ Rinkite-(Ce)
Formula: (Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
ⓘ Rosenbuschite
Formula: Na6Ca6Zr3Ti(Si2O7)4O2F6
ⓘ Roumaite (TL)
Formula: (Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
Type Locality:
ⓘ Sanidine
Formula: K(AlSi3O8)
ⓘ Serandite (TL)
Formula: NaMn2+2Si3O8(OH)
ⓘ 'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
ⓘ Sodalite
Formula: Na4(Si3Al3)O12Cl
ⓘ Sphalerite
Formula: ZnS
ⓘ Steacyite
Formula: K0.3(Na,Ca)2ThSi8O20
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ Villiaumite (TL)
Formula: NaF
Description: Found in small miarolitic cavities in nepheline syenites.
ⓘ Vishnevite
Formula: (Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
ⓘ Wöhlerite
Formula: Na2Ca4ZrNb(Si2O7)2O3F
ⓘ Zircon
Formula: Zr(SiO4)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘLöllingite2.EB.15aFeAs2
Group 3 - Halides
ⓘVilliaumite (TL)3.AA.20NaF
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘ'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘvar. Titanium-bearing Magnetite4.BB.05Fe2+(Fe3+,Ti)2O4
ⓘPyrophanite4.CB.05Mn2+TiO3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘQuartz4.DA.05SiO2
ⓘGibbsite4.FE.10Al(OH)3
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘRinkite-(Ce)9.00.20(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
ⓘAndradite9.AD.25Ca3Fe3+2(SiO4)3
ⓘGrossular9.AD.25Ca3Al2(SiO4)3
ⓘAndradite
var. Melanite		9.AD.25Ca3(Fe3+,Ti)2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘBritholite-(Ce)9.AH.25(Ce,Ca)5(SiO4)3OH
ⓘLåvenite9.BE.17Na2Ca2Mn2Zr2(Si2O7)2O2F2
ⓘNormandite9.BE.17NaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
ⓘHiortdahlite9.BE.17Na2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
ⓘWöhlerite9.BE.17Na2Ca4ZrNb(Si2O7)2O3F
ⓘMosandrite-(Ce)9.BE.20(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2
ⓘRoumaite (TL)9.BE.20(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
ⓘNacareniobsite-(Ce)9.BE.20Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
ⓘRosenbuschite9.BE.22Na6Ca6Zr3Ti(Si2O7)4O2F6
ⓘCatapleiite9.CA.15Na2Zr(Si3O9) · 2H2O
ⓘSteacyite9.CH.10K0.3(Na,Ca)2ThSi8O20
ⓘOneillite9.CO.10Na15Ca3Mn3Fe2+3Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
ⓘEudialyte9.CO.10Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
ⓘAugite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘAstrophyllite9.DC.05K2NaFe2+7Ti2Si8O26(OH)4F
ⓘKupletskite9.DC.05(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
ⓘHastingsite9.DE.15NaCa2(Fe2+4Fe3+)(Si6Al2)O22(OH)2
ⓘArfvedsonite9.DE.25[Na][Na2][Fe2+4Fe3+]Si8O22(OH)2
ⓘSerandite (TL)9.DG.05NaMn2+2Si3O8(OH)
ⓘLeucophanite9.DH.05NaCaBeSi2O6F
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Illite9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘOdinite (TL)9.ED.05(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
ⓘNepheline9.FA.05Na3K(Al4Si4O16)
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘOrthoclase9.FA.30K(AlSi3O8)
ⓘSanidine9.FA.30K(AlSi3O8)
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘCancrinite9.FB.05(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
ⓘVishnevite9.FB.05(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
ⓘSodalite9.FB.10Na4(Si3Al3)O12Cl
ⓘNosean9.FB.10Na8(Al6Si6O24)(SO4) · H2O
ⓘHaüyne9.FB.10Na3Ca(Si3Al3)O12(SO4)
ⓘ'Hackmanite'9.FB.10 vaNa8Al6Si6O24(Cl2,S)
ⓘNatrolite9.GA.05Na2Al2Si3O10 · 2H2O
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'K Feldspar'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8
ⓘ'Barkevikite'-
ⓘ'Amphibole Supergroup'-AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
ⓘ'Chlorite Group'-
ⓘ'Mica Group'-
ⓘ'Feldspar Group
var. Perthite'		-
ⓘ'Hiortdahlite II' ?-(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Feldspar Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Hⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Hⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Hⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Hⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Hⓘ GibbsiteAl(OH)3
Hⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Hⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Hⓘ Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ NoseanNa8(Al6Si6O24)(SO4) · H2O
Hⓘ NatroliteNa2Al2Si3O10 · 2H2O
Hⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Hⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Hⓘ SeranditeNaMn22+Si3O8(OH)
Hⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
Hⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
Hⓘ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
BeBeryllium
Beⓘ LeucophaniteNaCaBeSi2O6F
CCarbon
Cⓘ CalciteCaCO3
Cⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Cⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ AndraditeCa3Fe23+(SiO4)3
Oⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Oⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Oⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Oⓘ CalciteCaCO3
Oⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Oⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Oⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ GibbsiteAl(OH)3
Oⓘ GrossularCa3Al2(SiO4)3
Oⓘ HackmaniteNa8Al6Si6O24(Cl2,S)
Oⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Oⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Oⓘ HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Oⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Oⓘ IlmeniteFe2+TiO3
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Oⓘ LeucophaniteNaCaBeSi2O6F
Oⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Oⓘ NephelineNa3K(Al4Si4O16)
Oⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Oⓘ NoseanNa8(Al6Si6O24)(SO4) · H2O
Oⓘ NatroliteNa2Al2Si3O10 · 2H2O
Oⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Oⓘ OrthoclaseK(AlSi3O8)
Oⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Oⓘ PyrophaniteMn2+TiO3
Oⓘ QuartzSiO2
Oⓘ Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Oⓘ RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6
Oⓘ SanidineK(AlSi3O8)
Oⓘ SeranditeNaMn22+Si3O8(OH)
Oⓘ SodaliteNa4(Si3Al3)O12Cl
Oⓘ SteacyiteK0.3(Na,Ca)2ThSi8O20
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
Oⓘ WöhleriteNa2Ca4ZrNb(Si2O7)2O3F
Oⓘ ZirconZr(SiO4)
Oⓘ Hiortdahlite II(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Oⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
Oⓘ Andradite var. MelaniteCa3(Fe3+,Ti)2(SiO4)3
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
Oⓘ Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
FFluorine
Fⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Fⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ FluorapatiteCa5(PO4)3F
Fⓘ FluoriteCaF2
Fⓘ HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Fⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Fⓘ LeucophaniteNaCaBeSi2O6F
Fⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Fⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Fⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Fⓘ Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Fⓘ RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6
Fⓘ VilliaumiteNaF
Fⓘ WöhleriteNa2Ca4ZrNb(Si2O7)2O3F
Fⓘ Hiortdahlite II(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Fⓘ Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Naⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Naⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Naⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Naⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Naⓘ HackmaniteNa8Al6Si6O24(Cl2,S)
Naⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Naⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Naⓘ HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Naⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Naⓘ LeucophaniteNaCaBeSi2O6F
Naⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Naⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Naⓘ NephelineNa3K(Al4Si4O16)
Naⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Naⓘ NoseanNa8(Al6Si6O24)(SO4) · H2O
Naⓘ NatroliteNa2Al2Si3O10 · 2H2O
Naⓘ Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Naⓘ RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6
Naⓘ SeranditeNaMn22+Si3O8(OH)
Naⓘ SodaliteNa4(Si3Al3)O12Cl
Naⓘ SteacyiteK0.3(Na,Ca)2ThSi8O20
Naⓘ VilliaumiteNaF
Naⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
Naⓘ WöhleriteNa2Ca4ZrNb(Si2O7)2O3F
Naⓘ Hiortdahlite II(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Naⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Naⓘ Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
MgMagnesium
Mgⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Alⓘ AnalcimeNa(AlSi2O6) · H2O
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Alⓘ GibbsiteAl(OH)3
Alⓘ GrossularCa3Al2(SiO4)3
Alⓘ HackmaniteNa8Al6Si6O24(Cl2,S)
Alⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Alⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Alⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ NephelineNa3K(Al4Si4O16)
Alⓘ NoseanNa8(Al6Si6O24)(SO4) · H2O
Alⓘ NatroliteNa2Al2Si3O10 · 2H2O
Alⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Alⓘ OrthoclaseK(AlSi3O8)
Alⓘ SanidineK(AlSi3O8)
Alⓘ SodaliteNa4(Si3Al3)O12Cl
Alⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ AndraditeCa3Fe23+(SiO4)3
Siⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Siⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Siⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Siⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Siⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Siⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Siⓘ GrossularCa3Al2(SiO4)3
Siⓘ HackmaniteNa8Al6Si6O24(Cl2,S)
Siⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Siⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Siⓘ HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Siⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Siⓘ LeucophaniteNaCaBeSi2O6F
Siⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Siⓘ MicroclineK(AlSi3O8)
Siⓘ Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Siⓘ NephelineNa3K(Al4Si4O16)
Siⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Siⓘ NoseanNa8(Al6Si6O24)(SO4) · H2O
Siⓘ NatroliteNa2Al2Si3O10 · 2H2O
Siⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Siⓘ OrthoclaseK(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Siⓘ RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6
Siⓘ SanidineK(AlSi3O8)
Siⓘ SeranditeNaMn22+Si3O8(OH)
Siⓘ SodaliteNa4(Si3Al3)O12Cl
Siⓘ SteacyiteK0.3(Na,Ca)2ThSi8O20
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
Siⓘ WöhleriteNa2Ca4ZrNb(Si2O7)2O3F
Siⓘ ZirconZr(SiO4)
Siⓘ Hiortdahlite II(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Siⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
Siⓘ Andradite var. MelaniteCa3(Fe3+,Ti)2(SiO4)3
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
SSulfur
Sⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Sⓘ GalenaPbS
Sⓘ HackmaniteNa8Al6Si6O24(Cl2,S)
Sⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Sⓘ MolybdeniteMoS2
Sⓘ NoseanNa8(Al6Si6O24)(SO4) · H2O
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
ClChlorine
Clⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Clⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Clⓘ HackmaniteNa8Al6Si6O24(Cl2,S)
Clⓘ SodaliteNa4(Si3Al3)O12Cl
Clⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
KPotassium
Kⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ Muscovite var. IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
Kⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ NephelineNa3K(Al4Si4O16)
Kⓘ OrthoclaseK(AlSi3O8)
Kⓘ SanidineK(AlSi3O8)
Kⓘ SteacyiteK0.3(Na,Ca)2ThSi8O20
Kⓘ Vishnevite(Na,K)8(Al6Si6O24)(SO4,CO3) · 2H2O
CaCalcium
Caⓘ AndraditeCa3Fe23+(SiO4)3
Caⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Caⓘ CalciteCaCO3
Caⓘ Cancrinite(Na,Ca,◻)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Caⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Caⓘ FluorapatiteCa5(PO4)3F
Caⓘ FluoriteCaF2
Caⓘ GrossularCa3Al2(SiO4)3
Caⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Caⓘ HaüyneNa3Ca(Si3Al3)O12(SO4)
Caⓘ HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Caⓘ LeucophaniteNaCaBeSi2O6F
Caⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Caⓘ Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2
Caⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Caⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Caⓘ Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Caⓘ RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6
Caⓘ SteacyiteK0.3(Na,Ca)2ThSi8O20
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ WöhleriteNa2Ca4ZrNb(Si2O7)2O3F
Caⓘ Hiortdahlite II(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Caⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
Caⓘ Andradite var. MelaniteCa3(Fe3+,Ti)2(SiO4)3
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
Caⓘ Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
TiTitanium
Tiⓘ Amphibole SupergroupAB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Tiⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Tiⓘ Mosandrite-(Ce)(Ca3REE)[(H2O)2Ca0.5◻0.5]Ti(Si2O7)2(OH)2(H2O)2
Tiⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Tiⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Tiⓘ PyrophaniteMn2+TiO3
Tiⓘ Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
Tiⓘ RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Tiⓘ Andradite var. MelaniteCa3(Fe3+,Ti)2(SiO4)3
Tiⓘ Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
MnManganese
Mnⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Mnⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Mnⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Mnⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Mnⓘ PyrophaniteMn2+TiO3
Mnⓘ SeranditeNaMn22+Si3O8(OH)
Mnⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ AndraditeCa3Fe23+(SiO4)3
Feⓘ Arfvedsonite[Na][Na2][Fe42+Fe3+]Si8O22(OH)2
Feⓘ AstrophylliteK2NaFe72+Ti2Si8O26(OH)4F
Feⓘ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Feⓘ HastingsiteNaCa2(Fe42+Fe3+)(Si6Al2)O22(OH)2
Feⓘ IlmeniteFe2+TiO3
Feⓘ Kupletskite(K,Na)3(Mn,Fe)7Ti2Si8O26(OH)4F
Feⓘ LöllingiteFeAs2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Feⓘ Odinite(Fe,Mg,Al,Fe,Ti,Mn)2.4((Si,Al)2O5)(OH)4
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Feⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
Feⓘ Andradite var. MelaniteCa3(Fe3+,Ti)2(SiO4)3
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ LöllingiteFeAs2
YYttrium
Yⓘ Hiortdahlite II(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
ZrZirconium
Zrⓘ CatapleiiteNa2Zr(Si3O9) · 2H2O
Zrⓘ EudialyteNa15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Zrⓘ HiortdahliteNa2Ca4(Ca0.5Zr0.5)Zr(Si2O7)2OF3
Zrⓘ LåveniteNa2Ca2Mn2Zr2(Si2O7)2O2F2
Zrⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Zrⓘ RosenbuschiteNa6Ca6Zr3Ti(Si2O7)4O2F6
Zrⓘ WöhleriteNa2Ca4ZrNb(Si2O7)2O3F
Zrⓘ ZirconZr(SiO4)
Zrⓘ Hiortdahlite II(Na,Ca)4Ca8Zr2(Y,Zr,REE,Na)2(Si2O7)4(O3F5)
Zrⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
NbNiobium
Nbⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Nbⓘ NormanditeNaCa(Mn,Fe)(Ti,Nb,Zr)(Si2O7)OF
Nbⓘ Pyrochlore GroupA2Nb2(O,OH)6Z
Nbⓘ WöhleriteNa2Ca4ZrNb(Si2O7)2O3F
Nbⓘ OneilliteNa15Ca3Mn3Fe32+Zr3Nb(Si25O73)(O,OH,H2O)3(OH,Cl)2
Nbⓘ Roumaite(Ca,Na,REE,◻)7(Nb,Ti)[Si2O7]2OF3
MoMolybdenum
Moⓘ MolybdeniteMoS2
CeCerium
Ceⓘ Britholite-(Ce)(Ce,Ca)5(SiO4)3OH
Ceⓘ Nacareniobsite-(Ce)Na3Ca3(Ce,REE)Nb(Si2O7)2OF3
Ceⓘ Rinkite-(Ce)(Ca3Ce)Na(NaCa)Ti(Si2O7)2(OF)F2
PbLead
Pbⓘ GalenaPbS
ThThorium
Thⓘ SteacyiteK0.3(Na,Ca)2ThSi8O20

Fossils

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Other Databases

Wikipedia:https://en.wikipedia.org/wiki/%C3%8Eles_de_Los
Wikidata ID:Q292625
GeoNames ID:2418053

Localities in this Region

Guinea

Other Regions, Features and Areas that Intersect

African PlateTectonic Plate
Atlantic OceanOcean

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

Gerasimovskii, V.I., Kuznetsova, S.Y., Karpushina, V.A. & Nesmeyanova, L.I. 1970. Chemical composition of feldspathoid rocks of the Los Islands (Guinea). Geokhimiya. Akademiya Nauk SSSR, 8, 925-934.
Lacroix, A. (1908) Sur l’existence du fluorure de sodium cristallisé comme élément des syénites néphéliniques des îles de Los. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, 146: 213-216.
Lacroix, A. (1911) Les syénites néphéliniques de l’archipel de Los et leurs minéraux. Nouvelles Archive. Mus. Hist. Nat.: 3: 1-132.
Lacroix, A. (1924) Nouvelles observations sur les syénites néphéliniques des Iles de Los (Guinée). Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences: 178: 1109-1114.
Lacroix, A. (1931) Les pegmatites de la syénite sodalitique de l’île Rouma (archipel de Los, Guinée française). Description d’un noveau minéral (sérandite) qu’elles renferment. C. R. Acad. Sci. Paris: 192: 189-194.
Millot, G., & Bonifas, M. (1955). Transformations isovolumétriques dans les phénomènes de latéritisation et de bauxitisation. Sciences Géologiques, bulletins et mémoires, 8(1), 3-20. https://www.persee.fr/doc/sgeol_0037-2560_1955_num_8_1_1145
LAZARENKOV, V. (1975). CHEMICAL COMPOSITION OF THE LOS PLUTON, REPUBLIC OF GUINEA. Doklady of the Academy of Sciences, USSR, 224, 199-201.
KUZNETSOVA, S., & ZAGRYAZHSKAYA, G. (1983). Sulfur isotope and geochemical data on the crystallization conditions of the feldspathoid syenites in the Loss massif, Guinea. Geochemistry international, 20(2), 64-75.
MOREAU, C., Robineau, B., Bah, M. S., & Camara, I. S. (1986). Caractères pétrographiques et géométriques d'une structure annulaire de syénites néphéliniques: l'archipel des Iles de Los (Guinée). Comptes rendus de l'Académie des sciences. Série 2, Mécanique, Physique, Chimie, Sciences de l'univers, Sciences de la Terre, 303(1), 71-74.
Patterson, S., Kurtz, H., Olson, J., & Neeley, C. (1986). World bauxite resources, geology and resources of aluminium. US Geological Survey professional paper 1076-B.
Parodi, G.C., Della Ventura, G. (1987) Steacyite from the Rouma Isle (Los Islands, Republic of Guinea). Neues Jarbuch fur Mineralogie, Mh., Jg.: 1987(5): 233-239.
Bailey, S.W. (1988) Odinite; a new dioctahedral-trioctahedral Fe 3+-rich 1:1 clay mineral. Clay Minerals: 23(3): 237-247.
Moreau, C., Ohnenstetter, D., Demaiffe, D., Robineau, B. (1996) The Los Archipelago nepheline syenite ring-structure: a magmatic marker of the evolution of the central and equatorial Atlantic. Canadian Mineralogist: 34: 281-299.
Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure; a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299. https://www.researchgate.net/profile/Daniel_Demaiffe/publication/235939315_The_Los_Archipelago_nepheline_syenite_ring_structure_a_magmatic_marker_of_the_evolution_of_the_Central_and_Equatorial_Atlantic/links/00b49516bf525bfa21000000.pdf
Woolley, A. R. (2001). Alkaline rocks and carbonatites of the world. Part 3: Africa. Geological Society. Natural History Museum, London, p. 95.
Parodi, G. C., Chevrier, V. (2004) New discoveries in nephelinites from Los island (Republic of Guinea). 5th International Conference "Mineralogy & Museums", Paris, Sept. 5-8th 2004, Bull. de Liaison de la Soc. Franç. de Minéralogie et Cristallographie, 2004: 16(2).
Biagioni, C. (2007) I disilicati di Zr-Ti-Nb-REE delle sieniti a nefelina delle Iles de Los (Guinea). Tesi di laurea inedita, Università di Pisa.
Biagioni, C., Bonaccorsi, E., Merlino, S., Parodi, G. C., Perchiazzi, N., Chevrier, V., Bersani, D. (2010) Roumaite, (Ca,Na,◻)3(Ca,REE,Na)4(Nb,Ti)[Si2O7]2(OH)F3, from Rouma Island, Los Archipelago, Guinea: A new mineral species related to dovyrenite. The Canadian Mineralogist, 48 (1) 17-28 doi:10.3749/canmin.48.1.17
Biagioni, C., Merlino, S., Parodi, G. C., Perchiazzi, N. (2012) Crystal chemistry of minerals of the wöhlerite group from the Los Archipelago, Guinea. The Canadian Mineralogist, 50 (3) 593-609 doi:10.3749/canmin.50.3.593
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