Information card for entry 9010520

Structure parameters

• Mineral name: Gehlenite
• Formula: Al1.91 Ca2 Fe0.02 Mg0.05 O7 Si1.02
• Calculated formula: Al1.91 Ca2 Fe0.02 Mg0.05 O7 Si1.02
• Title of publication: Refinement of the crystal structure of a natural gehlenite, Ca2Al(Al,Si)2O7
• Authors of publication: Louisnathan, S. J.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 1971
• Journal volume: 10
• Pages of publication: 822 - 837
• a: 7.716 Å
• b: 7.716 Å
• c: 5.089 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 302.982 ų
• Number of distinct elements: 6
• Space group number: 113
• Hermann-Mauguin space group symbol: P -4 21 m
• Hall space group symbol: P -4 2ab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No