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Rouma Island, Los Archipelago (Los Islands), Conakry Region, Guinea i
Regional Level Types
Rouma Island Island
Los Archipelago (Los Islands) Archipelago
Conakry Region Region
Guinea Country

Regional Level Types
Rouma Island	Island
Los Archipelago (Los Islands)	Archipelago
Conakry Region	Region
Guinea	Country

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Aerial view of Rouma Island

Rouma Island, Los Archipelago, Conakry Region, Guinea

Villiaumite

Rouma Island, Los Archipelago, Conakry Region, Guinea

Villiaumite, etc.

Rouma Island, Los Archipelago, Conakry Region, Guinea

Aerial view of Rouma Island

Rouma Island, Los Archipelago, Conakry Region, Guinea

Villiaumite

Rouma Island, Los Archipelago, Conakry Region, Guinea

Villiaumite, etc.

Rouma Island, Los Archipelago, Conakry Region, Guinea

Aerial view of Rouma Island

Rouma Island, Los Archipelago, Conakry Region, Guinea

Villiaumite

Rouma Island, Los Archipelago, Conakry Region, Guinea

Type:

Island

Mindat Locality ID:

1968

Long-form identifier:

mindat:1:2:1968:5

GUID (UUID V4):

Other/historical names associated with this locality:

Ile Room; Île de Rouma; Roume Island; Roma Island; Ruma Island

Other Languages:

French:

Île Room, Îles de Los, Conakry, Guinée

Nepheline syenite with pegmatites.
The type locality for villiaumite is located at the northern part of the island where Mr. Villiaume blasted in an outcrop of pegmatitic nepheline syenite and collected material for the French mineralogist Alfred Lacroix (around 1908).

Two principal petrographic suites: a miaskitic suite, characterized by hastingsite-augite nepheline syenite, and an agpaitic suite, distinguished by arfvedsonite-aegirine nepheline syenite.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

44 valid minerals. 3 (TL) - type locality of 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

ⓘ Nepheline-syenite

ⓘ 'Pegmatite'

ⓘ Syenite

Detailed Mineral List:

ⓘ Aegirine

Formula: NaFe³⁺Si₂O₆

References:

Lacroix, A. (1908) Sur l'existance du fluorure de sodium cristallisé comme èlèment des syènites nèphèliniques des îles de Los. Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, 146 (5): 213-216

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

Perchiazzi, Natale, Ferraris, Cristiano, Mauro, Daniela, Vignola, Pietro (2025) Crystal Chemistry of Eudialyte Group Minerals from Rouma Island, Los Archipelago, Guinea. Minerals, 15 (3). doi:10.3390/min15030249

ⓘ Albite

Formula: Na(AlSi₃O₈)

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Analcime

Formula: Na(AlSi₂O₆) · H₂O

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

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

References:

ⓘ Astrophyllite

Formula: K₂NaFe²⁺₇Ti₂[Si₄O₁₂]₂O₂(OH)₄F

References:

ⓘ Augite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

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

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Calcite

Formula: CaCO₃

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Cancrinite

Formula: (Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O

ⓘ Catapleiite

Formula: Na₂Zr(Si₃O₉) · 2H₂O

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Eudialyte

Formula: Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Fluorite

Formula: CaF₂

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Galena

Formula: PbS

ⓘ Gibbsite

Formula: Al(OH)₃

ⓘ Grossular

Formula: Ca₃Al₂(SiO₄)₃

ⓘ Hastingsite

Formula: NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Hiortdahlite

Formula: Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Kentbrooksite

Formula: (Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O

References:

ⓘ Kupletskite

Formula: K₂NaMn²⁺₇Ti₂[Si₄O₁₂]₂O₂(OH)₄F

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Låvenite

Formula: Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Leucophanite

Formula: NaCaBeSi₂O₆F

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

ⓘ Molybdenite

Formula: MoS₂

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

ⓘ Natrolite

Formula: Na₂Al₂Si₃O₁₀ · 2H₂O

ⓘ Nepheline

Formula: Na₃K(Al₄Si₄O₁₆)

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Oneillite

Formula: Na₁₅Ca₃Mn₃Fe²⁺₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂

References:

analyzed by Dr. M. Murashko

Christian Brand's collection

analyzed by Mikhail Murashko

e-rocks.com (n.d.) https://e-rocks.com/item/mtr940082/oneillite?sid=3037987c6ae2dd8a8bc42d872a941307

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Pyrite

Formula: FeS₂

ⓘ 'Pyrochlore Group'

Formula: A₂Nb₂(O,OH)₆Z

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Pyrophanite

Formula: Mn²⁺TiO₃

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Pyrrhotite

Formula: Fe_1-xS

ⓘ Rinkite-(Ce)

Formula: (Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂

ⓘ Rosenbuschite

Formula: Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Roumaite (TL)

Formula: (Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃

Type Locality:

References:

ⓘ Serandite (TL)

Formula: NaMn²⁺₂Si₃O₈(OH)

Type Locality:

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Lacroix, Alfred (1931) Les pegmatites de la syènite sodalitique de l'Îsle Rouma (Archipel de Los, Guinèe française). Desciption d'un nouveau minéral (sérandite) qu'elles renfermént [Pegmatites of sodalitic syenite from Rouma Island (Los Archipelago, French Guinea). Description of a new mineral (serandite) they contain.]. Comptes Rendus des Séances hebdomadaires de l'Académie des Sciences, 192 (1). 189-194

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ 'Smectite Group'

Formula: A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Sodalite

Formula: Na₄(Si₃Al₃)O₁₂Cl

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Sodalite var. Hackmanite

Formula: Na₈Al₆Si₆O₂₄Cl₂

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ Steacyite

Formula: K_0.3(Na,Ca)₂ThSi₈O₂₀

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Parodi, Gian Carlo; Della_Ventura, Giancarlo (1987) Steacyite from the Rouma Isle:(los Islands, Republic of Guinea). Neues Jahrbuch fur Mineralogie, Monatshefte, 233-239

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

✪ Villiaumite (TL)

Formula: NaF

Type Locality:

Description: Found in small miarolitic cavities in nepheline syenites.

References:

a magmatic marker of the evolution of the Central and Equatorial Atlantic. The Canadian Mineralogist, 34(2), 281-299.

Moreau, C., Ohnenstetter, D., Demaiffe, D., & Robineau, B. (1996). The Los Archipelago nepheline syenite ring-structure

ⓘ 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
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 3 - Halides
ⓘ	Villiaumite (TL)	3.AA.20	NaF
ⓘ	Fluorite	3.AB.25	CaF₂
Group 4 - Oxides and Hydroxides
ⓘ	'Pyrochlore Group'	4.00.	A₂Nb₂(O,OH)₆Z
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
ⓘ	Pyrophanite	4.CB.05	Mn²⁺TiO₃
ⓘ	Gibbsite	4.FE.10	Al(OH)₃
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
Group 9 - Silicates
ⓘ	Grossular	9.AD.25	Ca₃Al₂(SiO₄)₃
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Hiortdahlite	9.BE.17	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃
ⓘ	Låvenite	9.BE.17	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
ⓘ	Wöhlerite	9.BE.17	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
ⓘ	Rinkite-(Ce)	9.BE.20	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
ⓘ	Roumaite (TL)	9.BE.20	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃
ⓘ	Rosenbuschite	9.BE.22	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
ⓘ	Catapleiite	9.CA.15	Na₂Zr(Si₃O₉) · 2H₂O
ⓘ	Steacyite	9.CH.10	K_0.3(Na,Ca)₂ThSi₈O₂₀
ⓘ	Eudialyte	9.CO.10	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
ⓘ	Kentbrooksite	9.CO.10	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
ⓘ	Oneillite	9.CO.10	Na₁₅Ca₃Mn₃Fe²⁺₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Aegirine	9.DA.25	NaFe³⁺Si₂O₆
ⓘ	Astrophyllite	9.DC.05	K₂NaFe²⁺₇Ti₂[Si₄O₁₂]₂O₂(OH)₄F
ⓘ	Kupletskite	9.DC.05	K₂NaMn²⁺₇Ti₂[Si₄O₁₂]₂O₂(OH)₄F
ⓘ	Hastingsite	9.DE.15	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
ⓘ	Arfvedsonite	9.DE.25	[Na][Na₂][Fe²⁺₄Fe³⁺]Si₈O₂₂(OH)₂
ⓘ	Serandite (TL)	9.DG.05	NaMn²⁺₂Si₃O₈(OH)
ⓘ	Leucophanite	9.DH.05	NaCaBeSi₂O₆F
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Nepheline	9.FA.05	Na₃K(Al₄Si₄O₁₆)
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Cancrinite	9.FB.05	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
ⓘ	Vishnevite	9.FB.05	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
ⓘ	Sodalite var. Hackmanite	9.FB.10	Na₈Al₆Si₆O₂₄Cl₂
ⓘ		9.FB.10	Na₄(Si₃Al₃)O₁₂Cl
ⓘ	Natrolite	9.GA.05	Na₂Al₂Si₃O₁₀ · 2H₂O
ⓘ	Analcime	9.GB.05	Na(AlSi₂O₆) · H₂O
Unclassified
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Smectite Group'	-	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
H	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
H	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
H	ⓘ Catapleiite	Na₂Zr(Si₃O₉) · 2H₂O
H	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
H	ⓘ Gibbsite	Al(OH)₃
H	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
H	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
H	ⓘ Pyrochlore Group	A₂Nb₂(O,OH)₆Z
H	ⓘ Serandite	NaMn₂²⁺Si₃O₈(OH)
H	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
H	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
H	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
H	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
Be	Beryllium
Be	ⓘ Leucophanite	NaCaBeSi₂O₆F
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
C	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
O	Oxygen
O	ⓘ Aegirine	NaFe³⁺Si₂O₆
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
O	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
O	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
O	ⓘ Catapleiite	Na₂Zr(Si₃O₉) · 2H₂O
O	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Gibbsite	Al(OH)₃
O	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
O	ⓘ Sodalite var. Hackmanite	Na₈Al₆Si₆O₂₄Cl₂
O	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
O	ⓘ Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
O	ⓘ Leucophanite	NaCaBeSi₂O₆F
O	ⓘ Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
O	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
O	ⓘ Pyrochlore Group	A₂Nb₂(O,OH)₆Z
O	ⓘ Pyrophanite	Mn²⁺TiO₃
O	ⓘ Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
O	ⓘ Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
O	ⓘ Serandite	NaMn₂²⁺Si₃O₈(OH)
O	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
O	ⓘ Steacyite	K_0.3(Na,Ca)₂ThSi₈O₂₀
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
O	ⓘ Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
O	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Smectite Group	A_0.3D_2-3[T₄O₁₀]Z₂ · nH₂O
O	ⓘ Roumaite	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃
F	Fluorine
F	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
F	ⓘ Fluorite	CaF₂
F	ⓘ Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃
F	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
F	ⓘ Leucophanite	NaCaBeSi₂O₆F
F	ⓘ Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
F	ⓘ Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
F	ⓘ Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
F	ⓘ Villiaumite	NaF
F	ⓘ Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
F	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
F	ⓘ Roumaite	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃
Na	Sodium
Na	ⓘ Aegirine	NaFe³⁺Si₂O₆
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Na	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
Na	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Na	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
Na	ⓘ Catapleiite	Na₂Zr(Si₃O₉) · 2H₂O
Na	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Na	ⓘ Sodalite var. Hackmanite	Na₈Al₆Si₆O₂₄Cl₂
Na	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Na	ⓘ Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃
Na	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Na	ⓘ Leucophanite	NaCaBeSi₂O₆F
Na	ⓘ Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
Na	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Na	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Na	ⓘ Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
Na	ⓘ Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
Na	ⓘ Serandite	NaMn₂²⁺Si₃O₈(OH)
Na	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Na	ⓘ Steacyite	K_0.3(Na,Ca)₂ThSi₈O₂₀
Na	ⓘ Villiaumite	NaF
Na	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Na	ⓘ Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
Na	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
Na	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺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
Mg	Magnesium
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Al	ⓘ Biotite	K(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	ⓘ Gibbsite	Al(OH)₃
Al	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Al	ⓘ Sodalite var. Hackmanite	Na₈Al₆Si₆O₂₄Cl₂
Al	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Al	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Al	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Al	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Aegirine	NaFe³⁺Si₂O₆
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Analcime	Na(AlSi₂O₆) · H₂O
Si	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
Si	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
Si	ⓘ Catapleiite	Na₂Zr(Si₃O₉) · 2H₂O
Si	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Si	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Si	ⓘ Sodalite var. Hackmanite	Na₈Al₆Si₆O₂₄Cl₂
Si	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Si	ⓘ Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃
Si	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Si	ⓘ Leucophanite	NaCaBeSi₂O₆F
Si	ⓘ Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Si	ⓘ Natrolite	Na₂Al₂Si₃O₁₀ · 2H₂O
Si	ⓘ Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
Si	ⓘ Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
Si	ⓘ Serandite	NaMn₂²⁺Si₃O₈(OH)
Si	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Si	ⓘ Steacyite	K_0.3(Na,Ca)₂ThSi₈O₂₀
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Si	ⓘ Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
Si	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Roumaite	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃
P	Phosphorus
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
S	Sulfur
S	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
S	ⓘ Galena	PbS
S	ⓘ Molybdenite	MoS₂
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
S	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Cl	Chlorine
Cl	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Cl	ⓘ Sodalite var. Hackmanite	Na₈Al₆Si₆O₂₄Cl₂
Cl	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Cl	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
K	Potassium
K	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
K	ⓘ Steacyite	K_0.3(Na,Ca)₂ThSi₈O₂₀
K	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Ca	Calcium
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
Ca	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Fluorite	CaF₂
Ca	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Ca	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Ca	ⓘ Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃
Ca	ⓘ Leucophanite	NaCaBeSi₂O₆F
Ca	ⓘ Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
Ca	ⓘ Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
Ca	ⓘ Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
Ca	ⓘ Steacyite	K_0.3(Na,Ca)₂ThSi₈O₂₀
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
Ca	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
Ca	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ca	ⓘ Roumaite	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃
Ti	Titanium
Ti	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Ti	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Ti	ⓘ Pyrophanite	Mn²⁺TiO₃
Ti	ⓘ Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
Ti	ⓘ Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
Ti	ⓘ Titanite	CaTi(SiO₄)O
Ti	ⓘ Roumaite	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃
Mn	Manganese
Mn	ⓘ Kupletskite	K₂NaMn₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Mn	ⓘ Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
Mn	ⓘ Pyrophanite	Mn²⁺TiO₃
Mn	ⓘ Serandite	NaMn₂²⁺Si₃O₈(OH)
Mn	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
Mn	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Fe	Iron
Fe	ⓘ Aegirine	NaFe³⁺Si₂O₆
Fe	ⓘ Arfvedsonite	[Na][Na₂][Fe₄²⁺Fe³⁺]Si₈O₂₂(OH)₂
Fe	ⓘ Astrophyllite	K₂NaFe₇²⁺Ti₂[Si₄O₁₂]₂O₂(OH)₄F
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Fe	ⓘ Hastingsite	NaCa₂(Fe₄²⁺Fe³⁺)(Si₆Al₂)O₂₂(OH)₂
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
Fe	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Zr	Zirconium
Zr	ⓘ Catapleiite	Na₂Zr(Si₃O₉) · 2H₂O
Zr	ⓘ Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂
Zr	ⓘ Hiortdahlite	Na₂Ca₄(Ca_0.5Zr_0.5)Zr(Si₂O₇)2OF₃
Zr	ⓘ Låvenite	Na₂Ca₂Mn₂Zr₂(Si₂O₇)₂O₂F₂
Zr	ⓘ Rosenbuschite	Na₆Ca₆Zr₃Ti(Si₂O₇)₄O₂F₆
Zr	ⓘ Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
Zr	ⓘ Zircon	Zr(SiO₄)
Zr	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
Zr	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Nb	Niobium
Nb	ⓘ Pyrochlore Group	A₂Nb₂(O,OH)₆Z
Nb	ⓘ Wöhlerite	Na₂Ca₄ZrNb(Si₂O₇)₂O₃F
Nb	ⓘ Kentbrooksite	(Na,REE)₁₅(Ca,REE)₆(Mn²⁺,Fe²⁺)₃Zr₃Nb[Si₂₅O₇₄]F₂ · 2H₂O
Nb	ⓘ Oneillite	Na₁₅Ca₃Mn₃Fe₃²⁺Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(OH,Cl)₂
Nb	ⓘ Roumaite	(Ca,Na,REE,◻)₇(Nb,Ti)[Si₂O₇]₂OF₃
Mo	Molybdenum
Mo	ⓘ Molybdenite	MoS₂
Ce	Cerium
Ce	ⓘ Rinkite-(Ce)	(Ca₃Ce)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂
Pb	Lead
Pb	ⓘ Galena	PbS
Th	Thorium
Th	ⓘ Steacyite	K_0.3(Na,Ca)₂ThSi₈O₂₀

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Wikidata ID:	Q28975308

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

Lacroix, A. (1911) Les syènites nèphèliniques de l'archipel de Los et leurs minéraux. Nouvelles Archives du Muséum d'Histoire Naturelle (Paris), Série 5.: 3: 1-132. (in French)

Lacroix, Alfred (1912) Les syénites néphéliniques de l'archipel de Los (Guinée) Bulletin de Minéralogie, 35 (1) 5-44 doi:10.3406/bulmi.1912.3494

Parodi, Gian Carlo; Della_Ventura, Giancarlo (1987) Steacyite from the Rouma Isle:(los Islands, Republic of Guinea). Neues Jahrbuch fur Mineralogie, Monatshefte, 233-239

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: 281-299.

rruff.info (n.d.) https://rruff.info/uploads/CRHDSDADS_146_1908_213.pdf

[1]Perchiazzi, Natale, Ferraris, Cristiano, Mauro, Daniela, Vignola, Pietro (2025) Crystal Chemistry of Eudialyte Group Minerals from Rouma Island, Los Archipelago, Guinea. Minerals, 15 (3). doi:10.3390/min15030249

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Rouma Island, Los Archipelago (Los Islands), Conakry Region, GuineaiRegional Level TypesRouma IslandIsland Los Archipelago (Los Islands)Archipelago Conakry RegionRegion GuineaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Rouma Island, Los Archipelago (Los Islands), Conakry Region, Guinea i
Regional Level Types
Rouma Island Island
Los Archipelago (Los Islands) Archipelago
Conakry Region Region
Guinea Country