Information card for entry 9013686

Structure parameters

• Mineral name: Kumtyubeite
• Formula: Ca5 F1.4 H0.6 O8.6 Si2
• Calculated formula: Ca5 F1.4 H0.6 O8.6 Si2
• Title of publication: Kumtyubeite Ca5(SiO4)2F2 - A new calcium mineral of the humite group from Northern Caucasus, Kabardino-Balkaria, Russia Locality: Northern Caucasus, Kabardino-Balkaria, Russia
• Authors of publication: Galuskina, I. O.; Lazic, B.; Armbruster, T.; Galuskin, E. V.; Gazeev, V. M.; Zadov, A. E.; Pertsev, N. N.; Jezak, L.; Wrzalik, R.; Gurbanov, A. G.
• Journal of publication: American Mineralogist
• Year of publication: 2009
• Journal volume: 94
• Pages of publication: 1361 - 1370
• a: 11.44637 Å
• b: 5.05135 Å
• c: 8.85234 Å
• α: 90°
• β: 108.863°
• γ: 90°
• Cell volume: 484.352 ų
• Number of distinct elements: 5
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/a 1
• Hall space group symbol: -P 2yab
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No