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| Calvo Rebollar, Miguel and Rewitzer, Christian (2022). Atlas de minerales de España. Atlas of Spanish minerals. Prames, Zaragoza. 384 págs. |
| Roda-Robles, Encarnación, Fontan, François, Pesquera Pérez, Alfonso, Keller, Paul (1998) The Fe-Mn phosphate associations from the Pinilla de Fermoselle pegmatite, Zamora, Spain: occurrence of kryzhanovskite and natrodufrénite. European Journal of Mineralogy, 10 (1) 155-168 doi:10.1127/ejm/10/1/0155 |
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