Information card for entry 9015491

Structure parameters

• Mineral name: Pumpellyite-(Mg)
• Formula: Al1.686 Ca2 Cr0.824 H4 Mg0.49 O14 Si3
• Calculated formula: Al6.744 Ca8 Cr3.296 H16 Mg1.96 O56 Si12
• Title of publication: X-ray single-crystal and optical spectroscopic study of chromian pumpellyite from Sarany, Urals, Russia
• Authors of publication: Nagashima, M.; Akasaka, M.; Ikeda, K.; Kyono, A.; Makino, K.
• Journal of publication: Journal of Mineralogical and Petrological Sciences
• Year of publication: 2010
• Journal volume: 105
• Pages of publication: 187 - 193
• a: 8.807 Å
• b: 5.943 Å
• c: 19.18 Å
• α: 90°
• β: 97.44°
• γ: 90°
• Cell volume: 995.43 ų
• Number of distinct elements: 7
• Space group number: 12
• Hermann-Mauguin space group symbol: A 1 2/m 1
• Hall space group symbol: -A 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No