Information card for entry 8100987

Structure parameters

• Formula: Al4 Cr4 H1.37 K2.63 Mg4 O14 Si4
• Calculated formula: K1.3116 Mg2.124 O7.054 Si2
• Title of publication: Crystal structure of potassium dimagnesium disilicate hydroxide, K~1.3~ (Mg~0.95~Al~0.03~Cr~0.02~)~2~Si~2~O~6.4~(OH)~0.6~
• Authors of publication: Mancini, Franco; Harlow, George; Cahill, Cristopher L.
• Journal of publication: Zeitschrift für Kristallographie - New Crystal Structures
• Year of publication: 2001
• Journal volume: 216
• Journal issue: 2
• Pages of publication: 189 - 190
• a: 5.0279 ± 0.0007 Å
• b: 5.0279 ± 0.0008 Å
• c: 13.2161 ± 0.0019 Å
• α: 90 ± 0.002°
• β: 90 ± 0.002°
• γ: 120 ± 0.002°
• Cell volume: 289.34 ± 0.07 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 7
• Space group number: 185
• Hermann-Mauguin space group symbol: P 63 c m
• Hall space group symbol: P 6c -2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No