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. Les-Échantillons-d, akaganéite étudiés présentent des caractéristiques structurales différentes. La phase d'akaganéite archéologique, formée en surface d'un objet corrodé présente une structure monoclinique en I2

. De-cette-phase, Les paramètres de maille cristalline obtenus sont présentés ci-après et comparés