As-Pr, Metalloid, Pnictogen, Rare earth, Orthorhombic

• As-Fe-O-Pr
• As-Fe-O-Pr-Ru
• Ag-As-Pr
• As-Au-Pr
• As-Ni-Pr
• thermal and thermodynamic properties
• electronic and electrical properties
• magnetic properties
• phase transitions
• structural properties
• pnictogen
• rare earth
• lanthanoid
• metalloid
• transitional