Information card for entry 9009567

Structure parameters

• Mineral name: Polyhalite
• Formula: Ca2 H4 K2 Mg O18 S4
• Calculated formula: Ca2 H4 K2 Mg O18 S4
• Title of publication: Die kristallstruktur des polyhalits, K2Ca2Mg(SO4)4(H2O)2
• Authors of publication: Schlatti, M.; Sahl, K.; Zemann, A.; Zemann, J.
• Journal of publication: Tschermaks Mineralogische und Petrographische Mitteilungen
• Year of publication: 1970
• Journal volume: 14
• Pages of publication: 75 - 86
• a: 11.69 Å
• b: 16.33 Å
• c: 7.6 Å
• α: 91.6°
• β: 90°
• γ: 91.9°
• Cell volume: 1449.46 ų
• Number of distinct elements: 6
• Space group number: 2
• Hermann-Mauguin space group symbol: F -1
• Hall space group symbol: -F 1
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No