Information card for entry 9001636

Structure parameters

• Mineral name: Penkvilksite
• Formula: H4 Na2 O13 Si4 Ti0.9 Zr0.1
• Calculated formula: H4 Na2 O13 Si4 Ti0.9 Zr0.1
• Title of publication: Penkvilksite, a new kind of silicate structure: OD character, X-ray single-crystal (1M), and powder Rietveld (2O) refinements of two MDO polytypes Note: polytype 2O
• Authors of publication: Merlino, S.; Pasero, M.; Artioli, G.; Khomyakov, A. P.
• Journal of publication: American Mineralogist
• Year of publication: 1994
• Journal volume: 79
• Pages of publication: 1185 - 1193
• a: 16.3721 Å
• b: 8.7492 Å
• c: 7.402 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1060.28 ų
• Number of distinct elements: 6
• Space group number: 60
• Hermann-Mauguin space group symbol: P n c a
• Hall space group symbol: -P 2a 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No