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Nezhilovite

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Nezhilovite
Nezilovite
General
CategoryMineral
Formula
(repeating unit)
PbZn2(Mn4+,Ti4+)2Fe8O19
Strunz classification4.CC.45
Crystal systemHexagonal
Space groupP63/mmc
Unit cella = 5.849 Å, c = 22.809 Å Z=2
Identification
Colourblack
Lustermetallic
Streakdark brown
Diaphaneityopaque
Specific gravity5.69
Optical propertiesUniaxial (-)
Pleochroismno

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

[edit]
  1. ^ "Nežilovite". mindat.org.
  2. ^ 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.