Information card for entry 9005258

Structure parameters

• Mineral name: Pargasite
• Formula: Al0.97 Ca1.84 F0.028 Fe1.57 H1.972 K0.1 Mg2.97 Mn0.02 Na0.45 Ni0.01 O23.972 Si7.4 Ti0.21 Zn0.01
• Calculated formula: Al0.97 Ca1.84 F0.028 Fe1.57 H1.972 K0.1 Mg2.97 Mn0.02 Na0.45 Ni0.01 O23.972 Si7.4 Ti0.21 Zn0.01
• Title of publication: Temperature-dependent Al order-disorder in the tetrahedral double chain of C2/m amphiboles Sample: S(6) Note: O(5) y-coordinate changed to reproduce reported bond lengths
• Authors of publication: Oberti, R.; Ungaretti, L.; Cannillo, E.; Hawthorne, F. C.; Memmi, I.
• Journal of publication: European Journal of Mineralogy
• Year of publication: 1995
• Journal volume: 7
• Pages of publication: 1049 - 1063
• a: 9.867 Å
• b: 18.044 Å
• c: 5.318 Å
• α: 90°
• β: 105.06°
• γ: 90°
• Cell volume: 914.298 ų
• Number of distinct elements: 14
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No