Elastic moduli, Langasite, Metalloid

• Ga-La-O-Si
• Ga-Ge-O-Sr
• Ca-Ga-Ge-O
• Al-N-Nd-O-Si
• Al-Ca-O-Si-Ta
• isothermal bulk modulus
• Poisson ratio
• shear modulus
• Young modulus
• metalloid
• chalcogen
• langasite
• oxide
• trigonal
• monoclinic
• triclinic