Information card for entry 1531631

Structure parameters

• Chemical name: (K0.3 Na0.6) (Ca1.7 Mg0.3) (Mg3 Fe Fe0.5 Al0.3 Ti0.2) (Al1.6 Si6.4 O22.5 (O H)1.5)
• Formula: Al1.9 Ca1.7 Fe1.5 H1.5 K0.3 Mg3.3 Na0.6 O24 Si6.4 Ti0.2
• Calculated formula: Al1.9 Ca1.7 Fe1.5 K0.3 Mg3.3 Na0.6 O24 Si6.4 Ti0.2
• Title of publication: Structural study of the amphibole in volcanic tuff
• Authors of publication: Kawahara, A.; Ohno, M.; Takano, Y.
• Journal of publication: Scientific Papers of the College of General Education, University of Tokyo
• Year of publication: 1972
• Journal volume: 22
• Pages of publication: 67 - 68
• a: 9.89 Å
• b: 18.03 Å
• c: 5.31 Å
• α: 90°
• β: 105.2°
• γ: 90°
• Cell volume: 913.737 ų
• Number of distinct elements: 10
• 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