Information card for entry 9008223

Structure parameters

• Mineral name: Congolite
• Formula: B7 Cl Fe2.4 Mg0.6 O13
• Calculated formula: B7 Cl Fe2.4 Mg0.6 O13
• Title of publication: Crystal-structure refinements for orthorhombic boracite, Mg3B7O13Cl, and a trigonal, iron-rich analogue
• Authors of publication: Dowty, E.; Clark, J. R.
• Journal of publication: Zeitschrift fur Kristallographie
• Year of publication: 1973
• Journal volume: 138
• Pages of publication: 64 - 99
• a: 8.612 Å
• b: 8.612 Å
• c: 21.065 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1353.01 ų
• Number of distinct elements: 5
• Space group number: 161
• 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