Information card for entry 9005202

Structure parameters

• Mineral name: Nenadkevichite
• Formula: H13.2 K2.98 Na1.22 Nb2.2 O31.15 Si8 Ti1.8
• Calculated formula: H6.3 K2.98 Na1.22 Nb2.2 O31.15 Si8 Ti1.8
• Title of publication: Crystal structure and microtwinning of K-rich nenadkevichite Note: Wat4 y-coordinate changed to reproduce reported bond lengths
• Authors of publication: Rastsvetaeva, R. K.; Tamazyan, R. A.; Pushcharovsky, D. Y.; Nadezhina, T. N.
• Journal of publication: European Journal of Mineralogy
• Year of publication: 1994
• Journal volume: 6
• Pages of publication: 503 - 509
• a: 14.692 Å
• b: 14.164 Å
• c: 7.859 Å
• α: 90°
• β: 117.87°
• γ: 90°
• Cell volume: 1445.74 ų
• Number of distinct elements: 7
• Space group number: 8
• Hermann-Mauguin space group symbol: C 1 m 1
• Hall space group symbol: C -2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No