Information card for entry 9002209

Structure parameters

• Mineral name: Pargasite
• Formula: Al1.72 Ca1.84 Mg4.56 Na0.58 O24 Si6.88
• Calculated formula: Al1.72 Ca1.84 Mg4.56 Na0.58 O24 Si6.88
• Title of publication: Hydrothermal synthesis of amphiboles along the tremolite-pargasite join and in the ternary system tremolite-pargasite-cummingtonite Sample: PARG 20-2
• Authors of publication: Sharma, A.; Jenkins, D. M.
• Journal of publication: American Mineralogist
• Year of publication: 1999
• Journal volume: 84
• Pages of publication: 1304 - 1318
• a: 9.8466 Å
• b: 17.99 Å
• c: 5.2793 Å
• α: 90°
• β: 105.099°
• γ: 90°
• Cell volume: 902.892 ų
• Number of distinct elements: 6
• 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