Information card for entry 9017088

Structure parameters

• Mineral name: Armstrongite
• Formula: Ca0.96 Ce0.01 H4 O17 Si6 Yb0.01 Zr0.99
• Calculated formula: Ca3.84 Ce0.04 H16 O68 Si24 Yb0.04 Zr3.96
• Title of publication: Armstrongite from Khan Bogdo (Mongolia): Crystal structure determination and implications for zeolite-like cation exchange properties
• Authors of publication: Mesto, E.; Kaneva, E.; Schingaro, E.; Vladykin, N.; Lacalamita, M.; Scordari, F.
• Journal of publication: American Mineralogist
• Year of publication: 2014
• Journal volume: 99
• Pages of publication: 2424 - 2432
• a: 14.0178 Å
• b: 14.1289 Å
• c: 7.8366 Å
• α: 90°
• β: 109.436°
• γ: 90°
• Cell volume: 1463.64 ų
• Number of distinct elements: 7
• 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