Beryl

• Al-Be-O-Si
• Al-Be-Cs-H-Li-Na-O-Si
• Al-Be-Cr-O-Si
• Al-Be-H-O-Si
• Al-Be-H-Li-Na-O-Si
• structural properties
• thermal and thermodynamic properties
• mechanical properties
• electronic and electrical properties
• elastic moduli
• metalloid
• beryl
• alkaline
• chalcogen
• silicate
• hexagonal