Rb3(Al0.3Ge0.7)10S20 mP66 14

• Al-Ge-Rb-S
• Al-Ge-Rb-Se
• Ga-Ge-K-Se
• Ga-Ge-K-S
• structural properties
• electronic energy gap
• phase transitions
• values of electronic energy gap
• temperature for congruent melting
• quaternary
• chalcogen
• metalloid
• tripolyhedral
• alkali
• monoclinic