Chalcogen, Conductor, Transitional, Hardness, Tetragonal

• Bi-Ca-Cu-O-Pb-Sr
• Ag-In-Se
• Al-Cu-Se
• Ag-Ga-Se
• Bi-Ca-Cu-O-Pb-Sm-Sr
• microhardness
• Vickers hardness number
• Mohs hardness
• transitional
• conductor
• chalcogen
• semiconductor
• disordered