Nezhilovite
(repeating unit)PbZn2(Mn4+,Ti4+)2Fe8O19 Strunz classification 4.CC.45 Crystal system Hexagonal Space group P63/mmc Unit cell a = 5.849 Å, c = 22.809 Å Z=2 Identification Colour black Luster metallic Streak dark brown Diaphaneity opaque Specific gravity 5.69 Optical properties Uniaxial (-) Pleochroism no
Nezhilovite is a magnetoplumbite mineral discovered in 1996 by Bermanec et al.,[1] who gave it the ideal elemental formula PbZn2(Mn4+, Ti4+)2Fe8O19. It forms black magnetic crystals up to 1mm with a tabular, hexagonal outline.[2] The mineral is optically anisotropic, bireflectant and is paramagnetic.[2] The minerals occurs in a matrix of "pink dolomitic marble from a Precambrian metamorphic complex of gneisses, schists and marbles in the Nezhilovo area" of the Pelagonian massif.[2]
References
- ^ "Nežilovite". mindat.org.
- ^ a b c "NEZILOVITE, A NEW MEMBER OF THE MAGNETOPLUMBITE GROUP AND THE CRYSTAL CHEMISTRY OF MAGNETOPLUMBITE AND HIBONITE" (PDF). The Canadian Mineralogist. 34: 1287–1297. 1996.
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