Information card for entry 1537624

Structure parameters

• Chemical name: Ca1.23 (Al2 Si7 O18) (H2 O)6
• Formula: Al2 Ca1.23 H12 O24 Si7
• Calculated formula: Al2.05 Ca1.235 O23.975 Si6.95
• Title of publication: On the crystal structure of the zeolite heulandite
• Authors of publication: Alberti, A.
• Journal of publication: Tschermaks Mineralogische und Petrographische Mitteilungen (-1978)
• Year of publication: 1972
• Journal volume: 18
• Pages of publication: 129 - 146
• a: 17.718 Å
• b: 17.897 Å
• c: 7.428 Å
• α: 90°
• β: 116.42°
• γ: 90°
• Cell volume: 2109.4 ų
• Number of distinct elements: 5
• Space group number: 8
• Hermann-Mauguin space group symbol: C 1 m 1
• Hall space group symbol: C -2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No