Phosphate de fer de couleur verte.
L’étude des phosphates des pegmatites de la région de Crozant (Creuse) a permis l’identification, outre la triplite déjà déterminée par Aubert et Pierrot (1959). de : phosphosidérite, bermanite, lispseombite, cacoxénite, phosphoferrite, ludlamite et vivianite.
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