As-Pr, Pnictogen, Rare earth

• As-Fe-O-Pr
• As-Ni-Pr
• As-Pr-Zn
• As-F-Fe-O-Pr
• thermal and thermodynamic properties
• electronic and electrical properties
• structural properties
• magnetic properties
• phase transitions
• metalloid
• rare earth
• pnictogen
• lanthanoid
• transitional
• tetragonal
• orthorhombic
• cubic
• hexagonal
• trigonal