Five-dimensional structure refinement of natural melilite, (Ca.sub.1.89./sub.Sr.sub.0.01./sub.Na.sub.0.08./sub.K.sub.0.02./sub.)(Mg.sub.0.92./sub.Al.sub.0.08./sub.)-(Si.sub.1.98./sub.Al.sub.0.02./sub.)O.sub.7./sub..

0133623 - FZU-D 20010423 RIV DK eng J - Journal Article
Bindi, L. - Bonazzi, P. - Dušek, Michal - Petříček, Václav - Chapuis, G.
Five-dimensional structure refinement of natural melilite, (Ca_1.89Sr_0.01Na_0.08K_0.02)(Mg_0.92Al_0.08)-(Si_1.98Al_0.02)O₇.
Acta Crystallographica Section B-Structural Science. Roč. 57, - (2001), s. 739-746. ISSN 0108-7681
R&D Projects: GA ČR GA202/00/0645
Grant - others:SNSF(CH) 20-46666.96; SNSF(CH) 20-56870.99
Institutional research plan: CEZ:AV0Z1010914
Keywords : modulated crystals * structure determination
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.955, year: 2001

The structure of a crystal of natural melilite form San Venanzo, Umbria (Italz) of the general formula X_2T1(T2)2O_{7, where X= Ca}0.945Na_0.02K0.01, T1= Mg_0.92Al0.08 and T2= Si_0.99Al0.01, has been solved and refined as and incommensurate structure in five-dimensional superspace.
Permanent Link: http://hdl.handle.net/11104/0031586