Information card for entry 8100226

Structure parameters

• Common name: talmessite
• Mineral name: Beta-roselite
• Formula: As2 Ca2 Co0.532 H4 Mg0.468 O10
• Calculated formula: As2 Ca2 Co0.532 H4 Mg0.468 O10
• Title of publication: Crystal structure of dicalcium (cobalt,magnesium) diarsenate dihydrate, Ca~2~(Co~0.532~Mg~0.468~)[AsO~4~]~2~ · 2H~2~O, hydrogen bonding in talmessite
• Authors of publication: Joswig, W.; Paulus, E. F.; Liebscher, B.
• Journal of publication: Zeitschrift für Kristallographie - New Crystal Structures
• Year of publication: 2004
• Journal volume: 219
• Journal issue: 4
• Pages of publication: 341 - 342
• a: 5.884 ± 0.001 Å
• b: 6.981 ± 0.001 Å
• c: 5.564 ± 0.001 Å
• α: 97.33 ± 0.02°
• β: 108.93 ± 0.02°
• γ: 108.18 ± 0.02°
• Cell volume: 198.63 ± 0.06 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 6
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No