Alkaline, Quaternary, P-421m

• Al-Ca-O-Si
• Ca-Mg-O-Si
• Ba-Co-Ge-O
• Eu-Mg-O-Si
• Ga-La-O-Sr
• structural properties
• magnetic properties
• magnetization
• thermal and thermodynamic properties
• phase transitions
• quaternary
• alkaline
• chalcogen
• metalloid
• tetragonal
• orthorhombic