B-K-O, Chalcogen, Thermal expansion

• B-H-K-O
• B-K-O-Si
• B-K-Li-O
• B-Be-K-O
• linear thermal expansion coefficient
• volume thermal expansion coefficient
• metalloid
• chalcogen
• alkali
• borate
• monoclinic
• orthorhombic
• trigonal
• triclinic
• hexagonal