... and applications of hexaferrite ceramics . Progr. Mater. Sci . , 57 , 1191 – 1334 . Townes , W.D. , Fang , J.H. , Perrotta , A.J. ( 1967 ): The crystal structure and refinement of ferrimagnetic barium ferrite, BaFe 12 O 19 . Z. Kristallogr. , 125 , 437 – 449 . Sharygin...

... 4 3+ O 7 , barium hexaferrite - BaFe 12 3+ O 19 , along with other several poorly identified phases. Clinopyroxene is rich in esseneite component (19–63 mol. %) and in a hypothetical end-member CaFe 3+ Fe 3+ SiO 6 (up to 25 mol. %) due to Fe 3+ substitution in tetrahedral sites (up to 0.26 apfu...

... 19 . It is isostructural with Ba[Fe 12 ]O 19 (barioferrite), a common synthetic permanent magnetic material (e.g. Pullar, 2012 ). They both belong to a wider family of compounds, the so-called hexagonal ferrites (or hexaferrites). The group members ( Table 1 ) are rare as minerals, but are found...

...–schorlomite with “calcioferrite” inclusions, which is replaced by barioferrite. On the right upper corner partially altered flamite with characteristic polysynthetic twinning is visible. (e and f) Altered magnesioferrite grains with khesinite rims and “hexaferrite” inclusions: (e) barite forms in empty spaces...

.... , Widmer , R. , Armbruster , T. ( 2018 ): First natural hexaferrite with mixed β″′-ferrite (β-alumina) and magnetoplumbite structure from Jabel Harmun, Palestinian Autonomy . Eur. J. Mineral. , 30 , DOI: 10.1127/ejm/2018/0030-2697 . Grey , I.E. , Kampf , A. , Keck , E...

... Kristallographie-Crystalline Materials , 229 , 345 – 352 . Pullar R.C. ( 2012 ) Hexagonal ferrites: A review of the synthesis, properties and applications of hexaferrite ceramics . Progress in Materials Science , 57 , 1191 – 1334 . Rohrbach A. Schmidt M.W. ( 2011 ) Redox freezing...

... in association with hematite, magnetite, titanite, götzenite, clinopyroxene, nepheline, and biotite near Üdersdorf, Graulai, and Altburg, western Eifel area, Germany. The new name alludes to the chemical composition and the structural relationship to hexaferrite-type compounds, e.g., the mineral is a member...

... hexaferrite with mixed β‴-ferrite (β-alumina) and magnetoplumbite structure from Jabel Harmun, Palestinian Autonomy . European Journal of Mineralogy 30 , 559 – 567 . Galuskina, I.O., Gfeller, F., Galuskin, E.V., Armbruster, T., Vapnik, Ye., Dulski, M., Gardocki...

... , 915 – 918 . Berry F. Marco J. Ponton C. Whittle K.R. ( 2001 ) Preparation and characterization of rare earth-doped strontium hexaferrites Sr 1−x M x Fe 12 O 19 (M = La, Eu) . Journal of Materials Science Letters , 20 , p. 431 – 434 . Berry F.J. Lumpkin G.R...

... with the hexaferrites. Found in the Slabik company quarry at Üdersdorf (5 km south-southwest of Daun), the Stolz quarry at Graulai (1 km north-northeast of Lammersdorf) and Altburg (1.5 km west of Schalkenmehren), western Eifel area, Germany. Lengauer, C.L. et al. ( 2001 ): Mineral. Petrol. 71 , 1...

... and electrical properties of M-type nanocrystalline aluminium substituted calcium hexaferrites . Advances in Appl. Sci. Res. 3 ( 5 ), 2672 – 2678 . Gfeller , F. , Srodek , D. , Kusz , J. , Dulski , M. , Gazeev , V.M. , Galuskina , I.O...

...+ Ti 1.81 Mg 0.37 Mn 0.37 Al 0.07 ) ∑11.96 O 19.00 . Relationship to other species : A member of the magnetoplumbite group. Name : Reflects the main chemical composition and relationship to the hexaferrites. Comments : IMA No. 1997–038. Details of the crystal structure are given...

... ; batiferrite: Lengauer et al. 2001 ), several synthetic hexagonal ferrites and hexagonal aluminates have been intensively investigated because of their technical applications as ferrimagnetics (hexaferrite) and solid-state electrolytes (hexa-aluminates) (e.g., Kummer 1972 ; Iyi et al. 1989 ; Kojima 1982...