(Na0.5Ca0.5)(Mg0.4Fe0.2Al0.4)Si2O6 mP40 13

• Al-Ca-Fe-Mg-Na-O-Si
• Al-Ca-Cr-Fe-Mg-Mn-Na-O-Si-Ti
• Mg-Na-O-Si
• Al-Ca-Mg-Na-O-Si
• Al-Ca-Fe-Na-O-Si-Ti
• structural properties
• alkaline
• metalloid
• chalcogen
• alkali
• silicate
• monoclinic