Home The crystal structure of lintisite, Na3LiTi2[Si2O6]2O2 · 2H2O, a new titanosilicate from Lovozero (USSR)
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The crystal structure of lintisite, Na3LiTi2[Si2O6]2O2 · 2H2O, a new titanosilicate from Lovozero (USSR)

Published/Copyright: August 25, 2010
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Abstract

Lintisite is a new titanosilicate with ideal chemical composition Na3LiTi2Si4O14 · 2H2O, found at Lovozero, Kola peninsula, USSR. The mineral is monoclinic, space group C2/c, with a = 28.583(4), b = 8.600(1), c = 5.219(1) Å, β = 91.03(2)°. The crystal structure of lintisite has been refined to R = 0.033, Rw = 0.028 for 1095 reflections collected with Mo radiation. The structure is formed by pyroxene-like chains of [SiO4] tetrahedra, chains of edge-sharing [TiO6] and [Na(O, H2O)6] octahedra, columns of edge-sharing [LiO4] tetrahedra, and distorted [NaO8] cubes. The modular relationships among lintisite, vinogradovite and ramsayite are discussed. Finally the thermal behaviour of lintisite is explained in the light of the structural results.

Published Online: 2010-08-25
Published in Print: 1990

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