Information card for entry 9017720

Structure parameters

• Mineral name: Bulachite
• Formula: Al2 As H7 O9
• Calculated formula: Al2 As H7 O9
• Title of publication: Bulachite, [Al6(AsO4)3(OH)9(H2O)4]*2H2O from Cap Garonne, France: Crystal structure and formation from a higher hydrate Note: T = 100 C
• Authors of publication: Grey, I. E.; Yoruk, E.; Kodjikian, S.; Klein, H.; Bougerol, C.; Brand, H. E. A.; Bordet, P.; Mumme, W. G.; Favreau, G.; Mills, S. J.
• Journal of publication: Mineralogical Magazine
• Year of publication: 2020
• Journal volume: 84
• Pages of publication: 608 - 615
• a: 15.3994 Å
• b: 17.6598 Å
• c: 7.80827 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 2123.46 ų
• Ambient diffraction temperature: 373.15 K
• Number of distinct elements: 4
• Space group number: 62
• Hermann-Mauguin space group symbol: P n m a
• Hall space group symbol: -P 2ac 2n
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No