Information card for entry 8103817

Structure parameters

• Chemical name: (Ba6.68 K2.74 Na1.50 Ca0.72) (Ce2.95 Fe0.55 Th0.35) (Ti4.92 Nb0.6) (Si6 O18)4 (O H)8.6 (H2 O)7.9
• Formula: Ba6.68 Ca0.72 Ce2.95 Fe0.55 H24.4 K2.74 Na1.5 Nb0.6 O88.5 Si24 Th0.35 Ti4.92
• Calculated formula: Ba6.68 Ca0.72 Ce2.95 Fe0.55 K2.74 Na1.5 Nb0.6 O88.5 Si24.006 Th0.35 Ti4.92
• Title of publication: Crystal structure of the K, Ti analogue of ilimausite-(Ce), (Ba, K,Na, Ca)11-12 (REE, Fe, Th)4 (Ti, Nb)6 (Si6 O18)4 (O H)12 * 4.5(H2 O): revision of structure model and structural formula
• Authors of publication: Krivovichev, S.V.; Yakovenchuk, V.N.; Armbruster, T.; Pakhomovskii, Ya.A.; Depmeier, W.
• Journal of publication: Zeitschrift fuer Kristallographie (149,1979-)
• Year of publication: 2003
• Journal volume: 218
• Pages of publication: 392 - 396
• a: 10.708 Å
• b: 10.708 Å
• c: 60.073 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 5965.22 ų
• Number of distinct elements: 12
• Space group number: 155
• Hermann-Mauguin space group symbol: R 3 2 :H
• Hall space group symbol: R 3 2"
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No