Information card for entry 9001823

Structure parameters

• Mineral name: Richterite
• Formula: Ca Mg1.01 Na3 Ni3.99 O24 Si8
• Calculated formula: Ca Mg1.01 Na3 Ni3.99 O24 Si8
• Title of publication: Site occupancies in synthetic monoclinic amphiboles: Rietveld structure refinement and infrared spectroscopy of (nickel, magnesium, cobalt)-richterite Sample: Ni80
• Authors of publication: Della Ventura, G.; Robert, J.-L.; Raudsepp, M.; Hawthorne, F. C.; Welch, M. D.
• Journal of publication: American Mineralogist
• Year of publication: 1997
• Journal volume: 82
• Pages of publication: 291 - 301
• a: 9.8886 Å
• b: 17.933 Å
• c: 5.2525 Å
• α: 90°
• β: 104.461°
• γ: 90°
• Cell volume: 901.928 ų
• Number of distinct elements: 6
• 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