Information card for entry 9001616

Structure parameters

• Mineral name: Heulandite-Ca
• Formula: Al4.446 Ca1.848 H12.38 K0.06 Na0.65 O48.38 Si13.554
• Calculated formula: Al4.446 Ca1.848 H12.38 K0.06 Na0.65 O48.38 Si13.554
• Title of publication: Crystal structure and optical properties of Na- and Pb-exchanged heulandite-group zeolites Sample: nonexchanged Atomic parameters from ICSD
• Authors of publication: Gunter, M. E.; Armbruster, T.; Kohler, T.; Knowles, C. R.
• Journal of publication: American Mineralogist
• Year of publication: 1994
• Journal volume: 79
• Pages of publication: 675 - 682
• a: 17.671 Å
• b: 17.875 Å
• c: 7.412 Å
• α: 90°
• β: 116.39°
• γ: 90°
• Cell volume: 2097.24 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