Information card for entry 9014451

Structure parameters

• Mineral name: Parakeldyshite
• Formula: H0.066 Na1.934 O7 Si2 Zr
• Calculated formula: H0.066 Na1.934 O7 Si2 Zr
• Title of publication: Refined crystal structure of parakeldyshite and genetic crystal chemistry of zirconium minerals with [Si2O7] diorthogroups
• Authors of publication: Pekov, I. V.; Zubkova, N. V.; Pushcharovsky, D. Y.; Kolitsch, U.; Tillmanns, E.
• Journal of publication: Crystallography Reports
• Year of publication: 2007
• Journal volume: 52
• Pages of publication: 1066 - 1071
• a: 6.617 Å
• b: 8.813 Å
• c: 5.426 Å
• α: 87.26°
• β: 85.68°
• γ: 71.75°
• Cell volume: 299.553 ų
• Number of distinct elements: 5
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No