Information card for entry 1560194

Structure parameters

• Common name: carlfriesite
• Formula: Ca O8 Te3
• Calculated formula: Ca O8 Te3
• Title of publication: The crystal structures of the mixed-valence tellurium oxysalts tlapallite, (Ca,Pb)3CaCu6[Te4+3Te6+O12]2(Te4+O3)2(SO4)2 . 3H2O, and carlfriesite, CaTe4+2Te6+O8
• Authors of publication: Owen P. Missen; Anthony R. Kampf; Stuart J. Mills; Robert M. Housley; John Spratt; Mark D. Welch; Mark F. Coolbaugh; Joe Marty; Marek Chorazewicz; Cristiano Ferraris
• Journal of publication: Mineralogical Magazine
• Year of publication: 2019
• Journal volume: 83
• Pages of publication: 439 - 549
• a: 9.9866 ± 0.0007 Å
• b: 5.67205 ± 0.00019 Å
• c: 12.2351 ± 0.0014 Å
• α: 90°
• β: 111.913 ± 0.007°
• γ: 90°
• Cell volume: 642.98 ± 0.09 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 3
• Space group number: 15
• Hermann-Mauguin space group symbol: I 1 2/a 1
• Hall space group symbol: -I 2ya
• Residual factor for all reflections: 0.0247
• Residual factor for significantly intense reflections: 0.023
• Weighted residual factors for significantly intense reflections: 0.0528
• Weighted residual factors for all reflections included in the refinement: 0.0538
• Goodness-of-fit parameter for all reflections included in the refinement: 1.298
• Diffraction radiation wavelength: 0.71075 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No