Information card for entry 9001243

Structure parameters

• Mineral name: Pargasite
• Formula: Al2.04 Ca1.86 Fe1.31 H2 Mg3.83 Na2.28 O24 Si5.96
• Calculated formula: Al2.04 Ca1.86 Fe1.31 H2 Mg3.83 Na2.28 O24 Si5.96
• Title of publication: Cation distribution in the octahedral sites of hornblendes sample P-P from Parau Island
• Authors of publication: Makino, K.; Tomita, K.
• Journal of publication: American Mineralogist
• Year of publication: 1989
• Journal volume: 74
• Pages of publication: 1097 - 1105
• a: 9.834 Å
• b: 18.01 Å
• c: 5.297 Å
• α: 90°
• β: 105.04°
• γ: 90°
• Cell volume: 906.017 ų
• Number of distinct elements: 8
• 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