Homework Problem
K-feldspar crystallization
Use the kalsilite-quartz phase diagram below to answer the following questions.
A. Given an initial liquid composition of 50% Ks, at what temperature would the first crystals begin to form?B. What would be the composition of the first crystal?
C. Describe the liquid composition path to the point where all of the liquid was crystallized.
D. What happens at point R in the Diagram?
E. What will be the exact percentage of each mineral in the final rock, assuming a closed system?
