Information card for entry 1557977

Structure parameters

• Common name: (Na0.58Ca0.01)(Li1.05Al1.95)Al6(BO3)3(Si6O18)(OH)3(O0.66F0.34)
• Mineral name: darrellhenryite
• Formula: Al7.95 B3 Ca0.01 F0.34 H3 Li1.05 Na0.58 O30.66 Si6
• Calculated formula: Al7.953 B3 F0.34 H3 Li1.047 Na0.56 O30.66 Si6
• Title of publication: Darrellhenryite, Na(LiAl2)Al6(BO3)3Si6O18(OH)3O, a new mineral from the tourmaline supergroup
• Authors of publication: Novak, M.; Ertl, A.; Povondra, P.; Galiova, M.V.; Rossman, G.R.; Pristacz, H.; Prem, M.; Giester, G.; Gadas, P.; Skoda, R.
• Journal of publication: American Mineralogist
• Year of publication: 2013
• Journal volume: 98
• Pages of publication: 1886 - 1892
• a: 15.809 ± 0.002 Å
• b: 15.809 ± 0.002 Å
• c: 7.089 ± 0.001 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1534.3 ± 0.3 ų
• Ambient diffraction temperature: 298 K
• Ambient diffracton pressure: 100 kPa
• Number of distinct elements: 9
• 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