Information card for entry 9007518

Structure parameters

• Mineral name: Pharmacolite
• Formula: As Ca H5 O6
• Calculated formula: As Ca H5 O6
• Title of publication: Determination of hydrogen atom positions in the crystal structure of pharmacolite, CaHAsO4(H2O)2, by neutron diffraction
• Authors of publication: Ferraris, G.; Jones, D. W.; Yerkess, J.
• Journal of publication: Acta Crystallographica, Section B
• Year of publication: 1971
• Journal volume: 27
• Pages of publication: 349 - 354
• a: 5.9745 Å
• b: 15.434 Å
• c: 6.2797 Å
• α: 90°
• β: 114.83°
• γ: 90°
• Cell volume: 525.525 ų
• Number of distinct elements: 4
• Space group number: 9
• Hermann-Mauguin space group symbol: I 1 a 1
• Hall space group symbol: I -2ya
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No