Birefringent, Chalcogen, Disordered, Ga-La-O-Si, Trigonal

• Ga-Ge-La-O-Si
• Ga-Ho-La-O-Si
• mechanical properties
• electronic and electrical properties
• elasticity
• structural properties
• permittivity (dielectric constant)
• birefringent
• disordered
• chalcogen
• conductor
• langasite