Richterite Structure Data

Richterite Structure Data
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Richterite

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Richterite_14
Formula: O22.8 F1.2 Si7.6 Ti.4 Mg5 (Na Ca) K H.92
Name: Richterite
Unit cell: 10.0262 18.0194 5.2871 90.0 104.874 90.0 , V=923.19
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 Rich61, Atomic parameters from ICSD

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