Structure of calcinaksite KNa[Ca(H₂O)][Si₄O_l0], the first hydrous member of the litidionite group of silicates with [Si₈O₂₀]⁸⁻ tubes

Calcinaksite is considered as a potential component of cements and concretes and a potential matrix for the immobilization of small molecules (in its channel system) and ions (on its cationic sites).