Information card for entry 9011809

Structure parameters

• Mineral name: Omphacite
• Formula: Al0.51 Ca0.5 Fe0.06 Mg0.46 Na0.5 O6 Si1.97
• Calculated formula: Al0.51 Ca0.5 Fe0.06 Mg0.46 Na0.5 O6 Si1.97
• Title of publication: In situ high temperature single crystal X-ray diffraction study of a natural omphacite Locality: Gorduno, Lepontine Alps, Switzerland Note: structure at high temperature (T=1073K)
• Authors of publication: Pavese, A.; Bocchio, R.; Ivaldi, G.
• Journal of publication: Mineralogical Magazine
• Year of publication: 2000
• Journal volume: 64
• Pages of publication: 983 - 993
• a: 9.627 Å
• b: 8.846 Å
• c: 5.282 Å
• α: 90°
• β: 107.06°
• γ: 90°
• Cell volume: 430.025 ų
• Ambient diffraction temperature: 1073 K
• Number of distinct elements: 7
• Space group number: 13
• Hermann-Mauguin space group symbol: P 1 2/n 1
• Hall space group symbol: -P 2yac
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No