Information card for entry 9012773

Structure parameters

• Mineral name: Bradaczekite
• Formula: As3 Cu4 Na O12
• Calculated formula: As3 Cu4 Na O12
• Title of publication: The Jahn-Teller distortion of copper coordination polyhedra in the alluaudite structural type: Crystal structure of bradaczekite, NaCu4(AsO4)3
• Authors of publication: Krivovichev, S. V.; Filatov, S. K.; Burns, P. C.
• Journal of publication: Zapiski Vserossijskogo Mineralogicheskogo Obshchestva
• Year of publication: 2001
• Journal volume: 2001
• Pages of publication: 1 - 8
• a: 12.053 Å
• b: 12.432 Å
• c: 7.2529 Å
• α: 90°
• β: 117.793°
• γ: 90°
• Cell volume: 961.421 ų
• Number of distinct elements: 4
• Space group number: 15
• Hermann-Mauguin space group symbol: C 1 2/c 1
• Hall space group symbol: -C 2yc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No