K0.2Na3.1Ca0.7(Al0.31Si0.69)12ClO24 tI82 87

• Al-Cl-Na-O-Si
• Al-Ca-Cl-K-Na-O-Si
• Al-C-Ca-Cl-Na-O-Si
• Al-Ca-Cl-Na-O-Si
• Al-C-Ca-K-Na-O-S-Si
• structural properties
• values of refractive index
• refractive index
• optical properties
• mechanical properties
• marialite
• alkali
• chalcogen
• metalloid
• disordered
• tetragonal