Information card for entry 9001942

Structure parameters

• Mineral name: Erionite-Ca
• Formula: Al4.254 Ca1.8 H49.746 K0.85 O51.36 Si13.746
• Calculated formula: Al4.254 Ca1.8 H30.72 K0.85 O51.36 Si13.746
• Title of publication: Crystal structure-crystal chemistry relationships in the zeolites erionite and offretite Sample from Tunguska
• Authors of publication: Gualtieri, A.; Artioli, G.; Passaglia, E.; Bigi, S.; Viani, A.; Hanson, J. C.
• Journal of publication: American Mineralogist
• Year of publication: 1998
• Journal volume: 83
• Pages of publication: 590 - 606
• a: 13.304 Å
• b: 13.304 Å
• c: 15.078 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 2311.21 ų
• Number of distinct elements: 6
• Space group number: 194
• Hermann-Mauguin space group symbol: P 63/m m c
• Hall space group symbol: -P 6c 2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No