Fusion, O-Th, Quaternary

• H-O-S-Th
• H-O-P-Th
• H-N-O-Th
• H-O-Se-Th
• Mo-O-Rb-Th
• temperature for congruent melting
• radioactive
• quaternary
• actinoid
• chalcogen
• monoclinic
• tetragonal
• cubic
• orthorhombic
• triclinic