Information card for entry 1558193

Structure parameters

• Common name: richardsite
• Formula: Cu Ga S4 Zn2
• Calculated formula: Cu Ga S4 Zn2
• Title of publication: Richardsite, Zn2CuGaS4, A New Gallium-Essential Member of the Stannite Group from the Gem Mines near Merelani, Tanzania
• Authors of publication: Bindi, Luca; Jaszczak, John A.
• Journal of publication: Minerals
• Year of publication: 2020
• Journal volume: 10
• Journal issue: 5
• Pages of publication: 467
• a: 5.3626 ± 0.0002 Å
• b: 5.3626 ± 0.0002 Å
• c: 10.5873 ± 0.0005 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 304.46 ± 0.02 ų
• Cell temperature: 299 ± 2 K
• Ambient diffraction temperature: 299 ± 2 K
• Number of distinct elements: 4
• Space group number: 121
• Hermann-Mauguin space group symbol: I -4 2 m
• Hall space group symbol: I -4 2
• Residual factor for all reflections: 0.0332
• Residual factor for significantly intense reflections: 0.0284
• Weighted residual factors for significantly intense reflections: 0.0862
• Weighted residual factors for all reflections included in the refinement: 0.0895
• Goodness-of-fit parameter for all reflections included in the refinement: 1.129
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No