Information card for entry 9017466

Structure parameters

• Mineral name: Phenakite
• Formula: Be2 O4 Si
• Calculated formula: Be36 O72 Si18
• Title of publication: An X-ray diffraction study of the electron-density distribution and electrostatic potential in phenakite Be2SiO4
• Authors of publication: Tsirelson, V. G.; Sokolova, Y. V.; Urusov, V. S.
• Journal of publication: Geochemistry International
• Year of publication: 1987
• Journal volume: 24
• Pages of publication: 101 - 110
• a: 12.485 Å
• b: 12.485 Å
• c: 8.264 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 1115.57 ų
• Number of distinct elements: 3
• Space group number: 148
• Hermann-Mauguin space group symbol: R -3 :H
• Hall space group symbol: -R 3
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No