Information card for entry 9016000

Structure parameters

• Mineral name: Effenbergerite
• Formula: Ba0.5 Cu O10 Si4 Sr0.5
• Calculated formula: Ba2 Cu4 O40 Si16 Sr2
• Title of publication: Structural basis for the anomalous low-temperature thermal expansion behavior of the gillespite-structured phase Ba0.5Sr0.5CuSi4O10 Sample: T = 5 K
• Authors of publication: Knight, K. S.; Henderson, C. M. B.
• Journal of publication: European Journal of Mineralogy
• Year of publication: 2007
• Journal volume: 19
• Pages of publication: 189 - 200
• a: 7.39675 Å
• b: 7.39675 Å
• c: 15.8465 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 866.992 ų
• Number of distinct elements: 5
• Space group number: 130
• Hermann-Mauguin space group symbol: P 4/n c c :2
• Hall space group symbol: -P 4a 2ac
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No