K0.2Na0.85Ba0.02Sr0.45Ca1.33(Al0.26Si0.74)18O36[H2O]13.4 mS142 12

• Al-Ba-Ca-H-K-Mg-Na-O-Si-Sr
• Al-H-Na-O-Si
• structural properties
• metalloid
• zeolite heu
• chalcogen
• alkali
• monoclinic