Information card for entry 9009826

Structure parameters

• Mineral name: Hiortdahlite I
• Formula: Ca4.74 F2.5 Na1.38 O15.5 Si4 Y0.88 Zr
• Calculated formula: Ca4.74 F2.5 Na1.38 O15.5 Si4 Y0.88 Zr
• Title of publication: The crystal structure of hiortdahlite II Note: this is a polytype of Hiortdahlite I
• Authors of publication: Merlino, S.; Perchiazzi, N.
• Journal of publication: Mineralogy and Petrology
• Year of publication: 1987
• Journal volume: 37
• Pages of publication: 25 - 35
• a: 11.012 Å
• b: 10.342 Å
• c: 7.359 Å
• α: 89.92°
• β: 109.21°
• γ: 90.06°
• Cell volume: 791.421 ų
• Number of distinct elements: 7
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No