Richterite Structure Data

Richterite Structure Data
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Richterite

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Richterite_13
Formula: O23.2 F.8 Si7.52 Ti.48 Mg5 (Na Ca) K H.92
Name: Richterite
Unit cell: 10.0427 18.0254 5.2922 90.0 104.875 90.0 , V=925.91
Space group: C12/M1 (12)

Della Ventura G , Robert J-L , Beny J-M , Raudsepp M , Hawthorne F C , American Mineralogist , 78 (1993) p.980-987, The OH-F substitution in Ti-rich potassium richterite: Rietveld structure, refinement and FTIR and micro-Raman spectroscopic studies of synthetic, amphiboles in the system K2O-Na2O-CaO-MgO-SiO2-TiO2-H2O-HF, Sample Rich60, Atomic parameters from ICSD

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