Boltwoodite

• H-K-O-Si-U
• H-K-Na-O-Si-U
• Ca-H-K-Na-O-Si-U
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• Debye or Einstein temperature
• heat capacity at constant pressure
• chalcogen
• actinoid
• boltwoodite
• alkali
• metalloid
• monoclinic