Druse clinopyroxene in D'Orbigny angritic meteorite studied by single-crystal X-ray diffraction, electron microprobe analysis, and Mössbauer spectroscopy

Crystals of KAlSiO4-O1(potassium aluminium silicate) were synthesized using a flux method and analysed utilizing single-crystal X-ray diffraction and electron microprobe analysis. Both methods confirm that the crystals are nonstoichiometric according to K1−xAl1−xSi1+xO4withx= 0.04 (1). KAlSiO4-O1is closely related to the stuffed derivatives of tridymite, although the topology of the Si/Al-ordered framework is different. Six-membered rings of UUDDUD and UUUDDD (U = up and D = down; ratio 2:1) configurations are present in layers parallel to theabplane. In contrast, the framework of tridymite exhibits UDUDUD rings. The crystals are affected by inversion, pseudo-orthorhombic and pseudo-hexagonal twinning.

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The relationships between crystal-chemical and hyperfine parameters in members of the astrophyllite-group: A combined57Fe Mossbauer spectroscopy and single-crystal X-ray diffraction study

European Journal of Mineralogy ◽

10.1127/0935-1221/2004/0016-0989 ◽

2004 ◽

Vol 16 (6) ◽

pp. 989-1002 ◽

Cited By ~ 2

Author(s):

Paula C. Piilonen ◽

Denis G. Rancourt ◽

R. James Evans ◽

Andr é E. Lalonde ◽

Andrew M. McDonald ◽

...

Keyword(s):

Mössbauer Spectroscopy ◽

Single Crystal ◽

Diffraction Study ◽

Mossbauer Spectroscopy ◽

Crystal Chemical ◽

X Ray Diffraction ◽

Hyperfine Parameters ◽

X Ray ◽

Mößbauer Spectroscopy ◽

Group A

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X-Ray Diffraction/Electron Microprobe Analysis of Surface Films Formed on Alloys during Hydrothermal Reaction with Geologic Materials

Advances in X-Ray Analysis ◽

10.1007/978-1-4613-2471-3_53 ◽

1985 ◽

pp. 367-375

Author(s):

R. G. Johnston ◽

M. B. Strope ◽

R. P. Anantatmula

Keyword(s):

Electron Microprobe ◽

Microprobe Analysis ◽

Electron Microprobe Analysis ◽

Hydrothermal Reaction ◽

Surface Films ◽

X Ray Diffraction ◽

X Ray ◽

Geologic Materials ◽

Diffraction Electron

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Resolution of Crystallographic Disorder by Coupled Single Crystal X-Ray Diffraction and Mossbauer Spectroscopy: Study of the (π-(1)-2-Thiollyl) Iron (II) System

Mössbauer Effect Methodology ◽

10.1007/978-1-4684-3162-9_8 ◽

1973 ◽

pp. 127-135 ◽

Cited By ~ 1

Author(s):

Betty R. Davis ◽

Ivan Bernal ◽

John Buttone ◽

Mary L. Good

Keyword(s):

Mössbauer Spectroscopy ◽

Single Crystal ◽

Mossbauer Spectroscopy ◽

Spectroscopy Study ◽

X Ray Diffraction ◽

X Ray ◽

Mößbauer Spectroscopy ◽

Crystallographic Disorder

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Single-Crystal X-ray Diffraction and Electron Microprobe Analysis of the Structurally related J-Phases Nd4[Si2O5N2]O2, Nd4[Si2−xAlxO5+xN2−x]O2 with x ≈ 0.4 and SrxHo4−x[Si2−yAlyO5+(x+y)N2−(x+y)]O2 with x ≈ 0.2 and y ≈ 0.4

Zeitschrift für anorganische und allgemeine Chemie ◽

10.1002/zaac.200600057 ◽

2006 ◽

Vol 632 (8-9) ◽

pp. 1496-1500 ◽

Cited By ~ 3

Author(s):

Alexandra Lieb ◽

Robert Kraut ◽

Wolfgang Schnick

Keyword(s):

Single Crystal ◽

Electron Microprobe ◽

Microprobe Analysis ◽

Electron Microprobe Analysis ◽

X Ray Diffraction ◽

X Ray

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Iron-zirconium oxides: An investigation of structural transformations by X-ray diffraction, electron diffraction, and iron-57 Mössbauer spectroscopy

Journal of Solid State Chemistry ◽

10.1016/0022-4596(89)90057-1 ◽

1989 ◽

Vol 83 (1) ◽

pp. 91-99 ◽

Cited By ~ 48

Author(s):

Frank J. Berry ◽

Michael H. Loretto ◽

Mark R. Smith

Keyword(s):

Mössbauer Spectroscopy ◽

Electron Diffraction ◽

Mossbauer Spectroscopy ◽

Structural Transformations ◽

X Ray Diffraction ◽

X Ray ◽

Mößbauer Spectroscopy ◽

Zirconium Oxides ◽

Diffraction Electron

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An electron microprobe analysis, secondary ion mass spectrometry, and single-crystal X-ray diffraction study of phlogopites from Mt. Vulture, Potenza, Italy: Consideration of cation partitioning

American Mineralogist ◽

10.2138/am.2006.1882 ◽

2006 ◽

Vol 91 (1) ◽

pp. 182-190 ◽

Cited By ~ 12

Author(s):

Ernesto Mesto ◽

Emanuela Schingaro ◽

Fernando Scordari ◽

Luisa Ottolini

Keyword(s):

Mass Spectrometry ◽

Single Crystal ◽

Diffraction Study ◽

Electron Microprobe ◽

Microprobe Analysis ◽

Electron Microprobe Analysis ◽

Secondary Ion Mass Spectrometry ◽

X Ray Diffraction ◽

X Ray ◽

Secondary Ion

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New data on georgiadesite

Mineralogical Magazine ◽

10.1180/minmag.1983.047.343.12 ◽

1983 ◽

Vol 47 (343) ◽

pp. 219-220 ◽

Cited By ~ 2

Author(s):

Roland C. Rouse ◽

Pete J. Dunn

Keyword(s):

Single Crystal ◽

Electron Microprobe ◽

Microprobe Analysis ◽

Electron Microprobe Analysis ◽

Chemical Formula ◽

X Ray Diffraction ◽

X Ray

AbstractThe chemistry and crystallography of type georgiadesite from Laurion, Greece, have been reexamined using electron microprobe analysis along with powder and single-crystal X-ray diffraction. Georgiadesite is monoclinic, P21/c, with a = 13.803(10), b = 7.910(2), c = 10.812(4) Å, and β = 102.68(3)°. No twinning was observed. The probable chemical formula is either Pb16(AsO4)4Cl14O2(OH)2 or Pb16(AsO4)4Cl14(OH)6. The calculated densities for these formulae are 6.39 and 6.44 g/cm3, respectively, compared to a measured value of 6.3 + 0.3 g/cm3

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