Information card for entry 9001561

Structure parameters

• Mineral name: Richterite
• Formula: Ca F1.2 H0.8 K Mg5 Na O22.8 Si7.6 Ti0.4
• Calculated formula: Ca F1.2 H0.8 K Mg5 Na O22.8 Si7.6 Ti0.4
• Title of publication: 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
• Authors of publication: Della Ventura, G.; Robert, J.-L.; Beny, J.-M.; Raudsepp, M.; Hawthorne, F. C.
• Journal of publication: American Mineralogist
• Year of publication: 1993
• Journal volume: 78
• Pages of publication: 980 - 987
• a: 10.0262 Å
• b: 18.0194 Å
• c: 5.2871 Å
• α: 90°
• β: 104.874°
• γ: 90°
• Cell volume: 923.194 ų
• Number of distinct elements: 9
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No