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| Cassedanne, Jacques P., Nen, Luizhélio Barreto da Silva (1991) Strontian Crandallite from the Alto Benedito Pegmatite, Paraiba, Brazil. The Mineralogical Record, 22 (3) 183-185 |
| Murdoch, J. (1955) Phosphate minerals of the Borborema pegmatites: I-Patrimonio. American Mineralogist: 40: 50-63. |
| Amores Casals, Sandra, Brito Barreto, Sandra de, Espallargas, Ruben, Fontan, François, Melgarejo Draper, Joan Carles (2014) Phosphate sequence study of Boqueirâo pegmatite (Rio Grande Do Norte State, Brazil) Estudos Geológicos, 24 (2) |