Information card for entry 9007360

Structure parameters

• Mineral name: Melilite
• Formula: Al0.09 Ca1.87 K0.02 Mg0.96 Na0.1 O7 Si1.98 Sr0.02
• Calculated formula: Al0.09 Ca1.87 K0.02 Mg0.96 Na0.1 O7 Si1.98 Sr0.02
• Title of publication: Incommensurate-normal phase transition in natural melilite: an in situ high-temperature X-ray single-crystal study Sample: San Venanzo, Italy; T = 298 K Note: xO1 and yO1 corrected by authors
• Authors of publication: Bindi, L.; Bonazzi, P.
• Journal of publication: Physics and Chemistry of Minerals
• Year of publication: 2005
• Journal volume: 32
• Pages of publication: 89 - 96
• a: 7.826 Å
• b: 7.826 Å
• c: 5.004 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 306.476 ų
• Ambient diffraction temperature: 298 K
• Number of distinct elements: 8
• Space group number: 113
• Hermann-Mauguin space group symbol: P -4 21 m
• Hall space group symbol: P -4 2ab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No