Information card for entry 9005257

Structure parameters

• Mineral name: Pargasite
• Formula: Al0.86 Ca1.85 F0.042 Fe1.55 H1.958 K0.1 Mg2.98 Mn0.02 Na0.43 O23.958 Si7.49 Ti0.21
• Calculated formula: Al0.86 Ca1.85 F0.042 Fe1.55 H1.958 K0.1 Mg2.98 Mn0.02 Na0.43 O23.958 Si7.49 Ti0.21
• Title of publication: Temperature-dependent Al order-disorder in the tetrahedral double chain of C2/m amphiboles Sample: S(5)
• 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: 9.869 Å
• b: 18.058 Å
• c: 5.32 Å
• α: 90°
• β: 105.03°
• γ: 90°
• Cell volume: 915.666 ų
• Number of distinct elements: 12
• 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