Themes of the Day:

• Equilibrium Crystallization in Binary Systems
• Fractional Crystallization in Binary Systems
• Equilibrium Crystallization in Ternary Systems

Equilibrium Crystallization in Binary Systems

• (Simple) Eutectic System (with no solid solution): Diopside-Anorthite
• Peritectic System (incongruent melting) - Forsterite-SiO₂
• Complete Solid Solution System - Anorthite-Albite, Forsterite-Fayalite
• Partial Solid Solution System - Albite-Orthoclase - at differing pressures

Fractional Crystallization in Binary Systems

• (Simple) Eutectic System (with no solid solution): Diopside-Anorthite
• Peritectic System (incongruent melting) - Forsterite-SiO₂
• Complete Solid Solution System - Anorthite-Albite, Forsterite-Fayalite
• Partial Solid Solution System - Albite-Orthoclase - at differing pressures

Equilibrium Crystallization in Ternary Systems

• Combining three binary phase diagrams into one ternary phase diagram
• (Simple) Eutectic System (with no solid solution): Diopside-Anorthite-Forsterite - showing temperature contours
• Let's crystallize the Diopside-Anorthite-Forsterite system!