Information card for entry 9001538

Structure parameters

• Mineral name: Richterite
• Formula: Ca H2 K Mg2.75 Na Ni2.25 O24 Si8
• Calculated formula: Ca H2 K Mg2.75 Na Ni2.25 O24 Si8
• Title of publication: Site occupancies in monoclinic amphiboles: Rietveld structure refinement of synthetic magnesium cobalt potassium richterite Sample: KNi40 Atomic parameters from ICSD
• Authors of publication: Della Ventura, G.; Robert, J.-L.; Raudsepp, M.; Hawthorne, F. C.
• Journal of publication: American Mineralogist
• Year of publication: 1993
• Journal volume: 78
• Pages of publication: 633 - 640
• a: 10.0492 Å
• b: 17.975 Å
• c: 5.2661 Å
• α: 90°
• β: 104.904°
• γ: 90°
• Cell volume: 919.237 ų
• Number of distinct elements: 8
• 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