Information card for entry 1519942

Structure parameters

• Mineral name: liskeardite
• Formula: Al29.2 As18 Fe2.8 H190 O188
• Calculated formula: Al29.164 As18 Fe2.836 O188.24
• Title of publication: Chiral edge-shared octahedral chains in liskeardite, [(Al,Fe)~32~(AsO~4~)~18~(OH)~42~(H~2~O)~22~]·52H~2~O, an open framework mineral with a pharmacoalumite-related structure
• Authors of publication: Grey, I. E.; Mumme, W. G.; Macrae, C. M.; Caradoc-Davies, T.; Price, J. R.; Rumsey, M. S.; Mills, S. J.
• Journal of publication: Mineralogical Magazine
• Year of publication: 2013
• Journal volume: 77
• Journal issue: 8
• Pages of publication: 3125 - 3135
• a: 24.576 ± 0.005 Å
• b: 7.754 ± 0.005 Å
• c: 24.641 ± 0.005 Å
• α: 90°
• β: 90.19 ± 0.01°
• γ: 90°
• Cell volume: 4696 ± 3 ų
• Ambient diffraction temperature: 293 K
• Number of distinct elements: 5
• Space group number: 5
• Hermann-Mauguin space group symbol: I 1 2 1
• Hall space group symbol: I 2y
• Residual factor for all reflections: 0.081
• Residual factor for significantly intense reflections: 0.0588
• Weighted residual factors for significantly intense reflections: 0.0745
• Weighted residual factors for all reflections included in the refinement: 0.0808
• Goodness-of-fit parameter for significantly intense reflections: 1.08
• Goodness-of-fit parameter for all reflections included in the refinement: 1.02
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes