Information card for entry 9000874

Structure parameters

• Mineral name: Zirkelite
• Formula: Ca0.84 Ce0.595 Fe Na0.31 Nb0.524 O14 Ta0.316 Th0.265 Ti2.16 Zr2
• Calculated formula: Ca0.84 Ce0.595 Fe Na0.31 Nb0.524 O14 Ta0.316 Th0.265 Ti2.16 Zr2
• Title of publication: Calciobetafite (new mineral of the pyrochlore group) and related minerals from Campi Flegrei, Italy; crystal structures of polymignyte and zirkelite: comparison with pyrochlore and zirconolite Note: B(2,3) for Ti61 has been changed to satisfy symmetry constraints
• Authors of publication: Mazzi, F.; Munno, R.
• Journal of publication: American Mineralogist
• Year of publication: 1983
• Journal volume: 68
• Pages of publication: 262 - 276
• a: 7.287 Å
• b: 7.287 Å
• c: 16.886 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 776.524 ų
• Number of distinct elements: 10
• Space group number: 152
• Hermann-Mauguin space group symbol: P 31 2 1
• Hall space group symbol: P 31 2"
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No