Crystal structure of babingtonite - De Gruyter
The structure consists of two single chains of silica tetrahedra, containing five tetrahedra per repeat unit, running parallel to the [110] zone and connected by Fe,Mn,Mg octahedra. Ca atoms occupy the large openings existing between the tetrahedral chains and the octahedra, and form irregular polyhedra each with eight oxygen atoms.
[PDF] Crystal structure of babingtonite | Semantic Scholar
The structure consists of two single chains of silica tetrahedra, containing five tetrahedra per repeat unit, running parallel to the [110] zone and connected by Fe,Mn,Mg octahedra. Ca atoms occupy the large openings existing between the tetrahedral chains and the octahedra, and form irregular polyhedra each with eight oxygen atoms.
Structural variation of babingtonite depending on cation …
2013年6月22日 · In this study, we examined six babingtonite and one manganbabingtonite specimens from different localities using electron microprobe analysis (EMPA), 57 Fe Mössbauer spectroscopic analysis and X-ray single-crystal refinement to determine the cation distribution at M1 and M2 and to find its effect on the crystal structure of babingtonite. This ...
Sequences of four edge-shared FeOu octahedra in the babingtonite structure are inter-rupted by the substitution of Mn2* ions for Fe2* and by Mn-induced stacking faults. These compositional and structural features influence M6ssbauer spectral parameters of babing-tonite, particularly at low temperatures where magnetic ordering of Fe occurs. In ...
Babingtonite - Wikipedia
Babingtonite is a calcium iron manganese inosilicate mineral with the formula Ca2(Fe,Mn)FeSi5O14(OH). It is unusual in that iron (III) completely replaces the aluminium so typical of silicate minerals.
Babingtonite from Kouragahana, Shimane Peninsula, Japan, was investigated using electron microprobe, X-ray Rietveld, and 57Fe Mössbauer spectral analyses to characterize its chemical compositions, crystal structure, oxi-dation state of Fe, and distribution of Fe between two crystallographically independent octahedral Fe1 and Fe2 sites.
Crystal structure of babingtonite - De Gruyter
Article Crystal structure of babingtonite was published on November 1, 1972 in the journal Zeitschrift für Kristallographie - Crystalline Materials (volume 135, issue 1-6).
Crystal structure of babingtonite with, inset, the strong.
Crystal structure of babingtonite with, inset, the strong hydrogen-bonding environment. [...] The potential of neutron powder diffraction in the location of hydrogen atoms in molecular...
Structural variation of babingtonite depending on cation …
2014年4月1日 · Sc-rich babingtonite from Heftetjern, Norway and Baveno, Italy were examined using electron microprobe analysis and X-ray single-crystal refinement in order to re-examine the behavior of Sc3+ and…
Crystal chemistry and Möessbauer spectra of babingtonite
1991年6月1日 · Sequences of four edge-shared FeO 6 octahedra in the babingtonite structure are interrupted by the substitution of Mn 2+ ions for Fe 2+ and by Mn-induced stacking faults. These compositional and structural features influence Mössbauer spectral parameters of babingtonite, particularly at low temperatures where magnetic ordering of Fe occurs.