Information card for entry 9016540

Structure parameters

• Mineral name: Laurentianite
• Formula: H18 Na2.76 Nb3 O26 Si4
• Calculated formula: H18 Na2.76 Nb3 O26 Si4
• Title of publication: Laurentianite, [NbO(H2O)]3(Si2O7)2[Na(H2O)2]3, a new mineral from Mont Saint-Hilaire, Quebec: description, crystal-structure determination and paragenesis
• Authors of publication: Haring, M. M. M.; McDonald, A. M.; Cooper, M. A.; Poirier, G. A.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 2012
• Journal volume: 50
• Pages of publication: 1265 - 1280
• a: 9.937 Å
• b: 9.937 Å
• c: 7.004 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 598.946 ų
• Number of distinct elements: 5
• Space group number: 143
• Hermann-Mauguin space group symbol: P 3
• Hall space group symbol: P 3
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No