Apatite, Disordered, Lanthanoid, Rare earth, Values of electronic energy gap

• La-O-Si-Sr
• Ge-La-Na-O
• Gd-N-O-Si
• Ca-La-O-Si
• B-La-O-Si
• lanthanoid
• apatite
• chalcogen
• disordered
• rare earth
• hexagonal
• monoclinic