Information card for entry 9009990

Structure parameters

• Mineral name: Tschernichite
• Formula: Al2.74 Ca0.89 H30 K0.11 Mg0.08 Na0.08 O40.34 Si13.26
• Calculated formula: Al2.74 Ca0.89 H16.68 K0.11 Mg0.08 Na0.08 O40.34 Si13.26
• Title of publication: Crystal structure of tetragonal and monoclinic polytypes of tschernichite, the natural counterpart of synthetic zeolite beta Sample: small crystal, tetragonal Note: Mg position adjusted to match reported bond lengths
• Authors of publication: Alberti, A.; Cruciani, G.; Galli, E.; Merlino, S.; Millini, R.; Quartieri, S.; Vezzalini, G.; Zanardi, S.
• Journal of publication: Journal of Physical Chemistry B
• Year of publication: 2002
• Journal volume: 106
• Pages of publication: 10277 - 10284
• a: 12.634 Å
• b: 12.634 Å
• c: 26.608 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 4247.12 ų
• Number of distinct elements: 8
• Space group number: 91
• Hermann-Mauguin space group symbol: P 41 2 2
• Hall space group symbol: P 4w 2c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No