Information card for entry 9017074

Structure parameters

• Mineral name: Chromo-alumino-povondraite
• Formula: Al3.08 B3 Ca0.07 Cr3.47 F0.25 Fe0.01 H3.02 K0.02 Mg2.25 Na0.87 O30.75 Si5.96 V0.22
• Calculated formula: Al3.08004 B3 Ca0.07 Cr3.47001 F0.25 Fe0.01002 H3.02 K0.02 Mg2.25003 Na0.87 O30.75 Si5.95998 V0.22002
• Title of publication: Chromo-alumino-povondraite, NaCr3(Al4Mg2)(Si6O18)(BO3)3(OH)3O, a new mineral species of the tourmaline supergroup
• Authors of publication: Reznitskii, L.; Clark, C. M.; Hawthorne, F. C.; Grice, J. D.; Skogby, H.; Halenius, U.; Bosi, F.
• Journal of publication: American Mineralogist
• Year of publication: 2014
• Journal volume: 99
• Pages of publication: 1767 - 1773
• a: 16.0277 Å
• b: 16.0277 Å
• c: 7.3085 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1625.93 ų
• Number of distinct elements: 13
• Space group number: 160
• Hermann-Mauguin space group symbol: R 3 m :H
• Hall space group symbol: R 3 -2"
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No