Information card for entry 9004350

Structure parameters

• Mineral name: Pargasite
• Formula: Ca1.78 F2 Ga2.36 Mg4.57 Na0.8 O22 Si6.28
• Calculated formula: Ca1.78 F2 Ga2.36 Mg4.57 Na0.8 O22 Si6.28
• Title of publication: Synthesis and rietveld refinement of amphibole along the join Ca2Mg5Si8O22F2 - NaCa2Mg4Ga3Si6O22F2 Sample: PARG 7-1
• Authors of publication: Jenkins, D. M.; Hawthorne, F. C.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 1995
• Journal volume: 33
• Pages of publication: 13 - 24
• a: 9.897 Å
• b: 18.01 Å
• c: 5.3059 Å
• α: 90°
• β: 105.165°
• γ: 90°
• Cell volume: 912.816 ų
• Number of distinct elements: 7
• 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