Liquid-crystalline phases were discovered more than a century ago.1 Up to now, tens of thousands of organic liquid crystals were discovered. In contrast, only a few mineral liquid crystals were characterized. In comparison to organic liquid crystals, inorganic ones may possess enhanced electrical, optical, magnetic properties and thermal stability. 1 The currently known lyotropic mineral liquid crystals, which formed in dispersions of anisometric inorganic particles at some critical concentration, were summarized in two review articles. 2,3 The liquid-crystalline phase of V2O5 suspensions shows an electro-optic effect and is used for measurement of residual dipolar couplings of unlabeled biomolecules. 4,5 Mineral liquid-crystal moieties can differ largely in size from one system to another, but they are in a colloidal range.