Ba3Nb6[Si2O7]2O12 hP39 189

• Ba-Nb-O-Si-Ta
• Ba-O-Si-Ta
• Ba-Nb-O-Si
• Li-O-Si-Sr-Ta-Zr
• Ba-Li-O-Si-Ta-Zr
• structural properties
• alkaline
• metalloid
• chalcogen
• transitional
• hexagonal