Banalsite

Banalsite is a rare barium, sodium aluminium silicate mineral with formula: BaNa₂Al₄Si₄O₁₆. Banalsite is a tectosilicate of the feldspar group.

Banalsite and its strontium analogue, stronalsite (SrNa₂Al₄Si₄O₁₆), constitute a complete solid solution series. In addition limited solid solution with calcium exists between these and lisetite: CaNa₂Al₄Si₄O₁₆.