Information card for entry 9014538

Structure parameters

• Mineral name: Windhoekite
• Formula: Ca1.98 Fe2.76 H20 Mn0.14 O32 Si8
• Calculated formula: Ca1.98 Fe2.76 H20 Mn0.14 O32 Si8
• Title of publication: Windhoekite, Ca2Fe3+3-x(Si8O20)(OH)4*10H2O, a new palygorskite-group mineral from the Aris phonolite, Namibia Note: the chemical formula for this mineral cannot be obtained from the crystal structure. The structure is missing two oxygens, and the OH positions were not given.
• Authors of publication: Chukanov, N. V.; Britvin, S. N.; Blass, G.; Belakovskiy, D. I.; Van, K. V.
• Journal of publication: European Journal of Mineralogy
• Year of publication: 2012
• Journal volume: 24
• Pages of publication: 171 - 179
• a: 14.319 Å
• b: 17.825 Å
• c: 5.242 Å
• α: 90°
• β: 103.5°
• γ: 90°
• Cell volume: 1300.98 ų
• Number of distinct elements: 6
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No