Information card for entry 1531994

Structure parameters

• Chemical name: (Na0.78 Ca0.14) (Fe2.3 Mg0.7) (Al5.59 Mg0.41) (Si6 O18) (B O3)3 (O H)4
• Formula: Al5.59 B3 Ca0.14 Fe2.3 H4 Mg1.11 Na0.78 O31 Si6
• Calculated formula: Al5.5902 B3 Ca0.14 Fe2.301 Mg1.1088 Na0.78 O31 Si6
• Title of publication: Chemical composition and crystal structure refinement of schorl from the Lundazi pegmatite field, Zambia
• Authors of publication: Ondrus, P.; Vrana, S.; Maslan, M.
• Journal of publication: Bulletin of the Czech Geological Survey
• Year of publication: 2002
• Journal volume: 77
• Pages of publication: 23 - 28
• a: 15.9856 Å
• b: 15.9856 Å
• c: 7.1892 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1591 ų
• 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