Information card for entry 9009412

Structure parameters

• Mineral name: Gugiaite
• Formula: Be Ca2 O7 Si2
• Calculated formula: Be Ca2 O7 Si2
• Title of publication: The crystal structure of natural gugiaite, Ca2BeSi2O7 Locality: skarn rocks in the Gugia alkaline complex, Liaoning Province, China Note, z coordinate of Ca is altered to reproduce reported Ca-O bond lengths
• Authors of publication: Yang, Z.; Fleck, M.; Pertlik, F.; Tillmanns, E.; Tao, K.
• Journal of publication: Neues Jahrbuch fur Mineralogie, Monatshefte
• Year of publication: 2001
• Journal volume: 2001
• Pages of publication: 186 - 192
• a: 7.433 Å
• b: 7.433 Å
• c: 4.997 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 276.082 ų
• Number of distinct elements: 4
• 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