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Sodalite
Items for "Sodalite"
The transformation mechanism of the sodalite- to the melilite-topology: Thermal expansion and decomposition of bicchulite-type to melilite-type compounds
The mineral bicchulite, |Ca8(OH)8| [Al8Si4O24]-SOD, has the sodalite-(SOD-)type structure...
Keywords: Sodalite, Melilite, Thermal expansion, thermal decomposition, Reaction mechanism
03/2006 | Zeitschrift für Kristallographie, Oldenbourg WissenschaftsverlagStructural variations in the solid solution series of sodalite-type |(EuxCa2–x)4(OH)8|[(Al2+xSi1–x)4O24]-SOD with 0 &
The mineral bicchulite, |Ca8(OH)8|[Al8Si4O24]-SOD, has sodalite-(SOD)-type structure...
Keywords: Sodalite, Bicchulite, Loewenstein rule, Aluminium-avoidance rule, MAS NMR spectroscopy
09/2006 | Zeitschrift für Kristallographie, Oldenbourg WissenschaftsverlagStructure and properties of tecto-gallosilicates II. Sodium chloride, bromide and iodide sodalites
The crystal structures of the gallosilicate so dalites Na8[GaSiO4]6Cl2, Na8[GaSiO4]6Br2 and Na8[GaSiO4]6I2 were refined from X-ray powder data in the space group P-43n: a = 894.70 pm, V = 0.7162 nm3, RWP = 0.066, RP = 0.050, RI = 0.011, a = 900.83 pm, V = 0.73102 nm3, RWP = 0.066, RP = 0.051, RI = 0.016 and a = 908.36 pm, V = 0.74951 nm3, RWP = 0.050, RP = 0.036, RI = 0.013 for 4000 data points and 14 variable positional parameters in each case for the chloride, bromide and iodide compound, respectively...
Keywords: Sodalite, Powder diffraction structure analysis, X-ray diffraction, X-ray heating experiment, Spectroscopy
06/2007 | Zeitschrift für Kristallographie, Oldenbourg WissenschaftsverlagIsomorphous gallium substitution in the alumosilicate sodalite framework: synthesis and structural studies of chloride and bromide containing phases
In the Na8[T1T2O4]6Y2 sodalite system (Y = Cl, Br, T2 = Si) the aluminium bearing T1 position was successively substituted with gallium...
Keywords: Sodalite, Synthesis, Powder diffraction structure analysis, X-ray diffraction
07/2007 | Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag