Information card for entry 9015379

Structure parameters

• Mineral name: Archerite
• Formula: H0.88 K0.78 N0.22 O4 P
• Calculated formula: H0.88 K0.78 N0.22 O4 P
• Title of publication: Structure refinements of the mixed crystal K0.78(NH4)0.22H2PO4 in the temperature range from 20 K to 250K Note: T = 20 K
• Authors of publication: Ono, Y.; Yamada, N.; Hikita, T.
• Journal of publication: Journal of the Physical Society of Japan
• Year of publication: 1991
• Journal volume: 60
• Pages of publication: 2673 - 2677
• a: 7.4398 Å
• b: 7.4398 Å
• c: 7.0454 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 389.967 ų
• Number of distinct elements: 5
• Space group number: 122
• Hermann-Mauguin space group symbol: I -4 2 d
• Hall space group symbol: I -4 2bw
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No