Chalcogen, Pyrite-marcasite, Fusion

• As-Fe-S
• As-Co-Fe-S
• As-Co-Se
• Mn-S
• Pd-Se
• temperature for congruent melting
• pyrite-marcasite
• chalcogen
• transitional
• ternary
• cubic
• orthorhombic
• monoclinic
• trigonal
• triclinic