Information card for entry 1525722

Structure parameters

• Chemical name: (Mn19.50 Mg4.44) (V2.38 As1.12 Si2.76) O27.3 (O H)21.3
• Formula: As1.12 Mg4.44 Mn19.5 O45.6 Si2.76 V2.38
• Calculated formula: As1.12 Mg4.44 Mn19.5 O45.6 Si2.76 V2.38
• Title of publication: Description and structure of turtmannite, a new mineral with a 68 A period related to mcgovernite
• Authors of publication: Brugger, J.; Armbruster, T.; Meisser, N.; Hejny, C.; Grobety, B.
• Journal of publication: American Mineralogist
• Year of publication: 2001
• Journal volume: 86
• Pages of publication: 1494 - 1505
• a: 8.259 Å
• b: 8.259 Å
• c: 204.3 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 12068.5 ų
• Number of distinct elements: 6
• Space group number: 167
• Hermann-Mauguin space group symbol: R -3 c :H
• Hall space group symbol: -R 3 2"c
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No