Information card for entry 9017223

Structure parameters

• Mineral name: Umbrianite
• Formula: Al3.1 Ca2.5 Cl1.9 F2.1 Fe0.3 K6.5 Mg0.1 Na1.6 O29 Si9.6
• Calculated formula: Al6.2 Ca5 Cl3.8 F4.2 Fe0.6 K13 Mg0.2 Na3.2 O58 Si19.2
• Title of publication: Umbrianite, K7Na2Ca2[Al3Si10O29]F2Cl2, a new mineral species from melilitolite of the Pian di Celle volcano, Umbria, Italy
• Authors of publication: Sharygin, V. V.; Pekov, I. V.; Zubkova, N. V.; Khomyakov, A. P.; Stoppa, F.; Pushcharovsky, D. Y.
• Journal of publication: European Journal of Mineralogy
• Year of publication: 2013
• Journal volume: 25
• Pages of publication: 655 - 669
• a: 7.0618 Å
• b: 38.42 Å
• c: 6.5734 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1783.46 ų
• Number of distinct elements: 10
• Space group number: 59
• Hermann-Mauguin space group symbol: P m m n :2
• Hall space group symbol: -P 2ab 2a
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No