Information card for entry 9010493

Structure parameters

• Mineral name: Merrillite
• Formula: Ca9.443 Fe0.065 Mg0.935 O28 P6.964
• Calculated formula: Ca9.443 Fe0.065 Mg0.935 O28 P6.964
• Title of publication: The crystal chemistry of whitlockite and merrillite and the dehydrogenation of whitlockite to merrillite Note: Formed through dehydrogenation of synthetic whitlockite by heating at 1050 degrees C for 24 hours
• Authors of publication: Hughes, J. M.; Jolliff, B. L.; Rakovan, J.
• Journal of publication: American Mineralogist
• Year of publication: 2008
• Journal volume: 93
• Pages of publication: 1300 - 1305
• a: 10.3499 Å
• b: 10.3499 Å
• c: 37.115 Å
• α: 90°
• β: 90°
• γ: 120°
• Cell volume: 3443.12 ų
• Sample thermal history: heating at 1050 degrees C for 24 hours
• 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