Information card for entry 9011105

Structure parameters

• Formula: Er2 O7 Si2
• Calculated formula: Er2 O7 Si2
• Title of publication: The crystal structures of the rare earth pyrosilicates
• Authors of publication: Smolin, Y. I.; Shepelev, Y. F.
• Journal of publication: Acta Crystallographica, Section B
• Year of publication: 1970
• Journal volume: 26
• Pages of publication: 484 - 492
• a: 4.683 Å
• b: 5.556 Å
• c: 10.79 Å
• α: 90°
• β: 90°
• γ: 96°
• Cell volume: 279.204 ų
• Number of distinct elements: 3
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 1 21/b
• Hall space group symbol: -P 2bc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No