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Arfvedsonite from
Rouma Island, Los Archipelago (Los Islands), Conakry Region, Guinea


Locality type:Island
Classification
Species:Arfvedsonite
Formula:NaNa2(Fe42+Fe3+)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Arfvedsonite data
Locality Data:Click here to view Rouma Island, Los Archipelago (Los Islands), Conakry Region, Guinea
Data Identifiers
Mindat Occurrence Record ID:157167
Long-form Identifier:1:3:157167:7
GUID (UUID V4):0
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
 
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