B-K, Chalcogen, Effective mass

• B-H-K-O
• B-K-O-Si
• B-K-Li-O
• B-K-O
• B-F-H-K-O
• electrical conductivity
• metalloid
• chalcogen
• alkali
• borate
• monoclinic
• orthorhombic
• trigonal
• triclinic
• hexagonal