READING ASSIGNMENTS NESSE: Pages 72-73, plotting compositions on diagrams Pages 81-83, plagioclase binary diagram, example of how zoned crystals form. Pages 91-92, exsolution and the solvus. Phase Chemistry and Phase Diagrams Introduction Unary Systems Phase Rule Binary diagrams Introduction Definitions Getting Started Phase Rule Lever Rule Crystallization in Binary Systems Binary System #1 - Simple system (Di-An) Equilibium Crystallization Fractional Crystallization Melting Binary System # 4 - Solid Solution (Ab-An) Equilibrium Crystallization Fractional Crystallization Binary System #5 - Ab-Or Ternary Systems Introduction Phase Rule Compositions Hypothetical Ternary Systems Rules Directions of Falling Temperature Isothermal Sections Ternary System #2 - Incongruent Melting (Fo-Si-An) Equilibrium Crystallization 1 Equilibrium Crystallization 2 Fractional Crystallization