Information card for entry 1544621

Structure parameters

• Common name: K1.93(Mg2.02Cr0.02)Si2O7
• Mineral name: anhydrous phase X
• Formula: Cr0.02 K1.93 Mg2.02 O7 Si2
• Calculated formula: K2 Mg2 O7 Si2
• Title of publication: Crystal structure of anhydrous phase X, K1.93(Mg2.02Cr0.02)Si2.00O7
• Authors of publication: Matsuzaki, T.; Hagiya, K.; Shatskiy, A.; Katsura, T.; Matsui, M.
• Journal of publication: Journal of Mineralogical and Petrological Sciences
• Year of publication: 2010
• Journal volume: 105
• Pages of publication: 303 - 308
• a: 5.0756 ± 0.0001 Å
• b: 5.0756 ± 0.0001 Å
• c: 6.5969 ± 0.0002 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 147.179 ± 0.006 ų
• Number of distinct elements: 5
• Space group number: 162
• Hermann-Mauguin space group symbol: P -3 1 m
• Hall space group symbol: -P 3 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No