University of Colorado at Boulder
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Students are given a simplified temperature-composition phase diagram for the system enstatite (Mg2Si2O6) - diopside (CaMgSi2O6), and asked to interpret it by answering a series of questions.
This problem set is designed for an undergraduate course in mineralogy for majors.
Skills and concepts that students must have mastered
Students should have a general understanding of phase diagrams and how to interpret them.
How the activity is situated in the course
This is a stand-alone exercise used as a homework assignment.
Content/concepts goals for this activity
This problem set is designed to help students understand and interpret phase diagrams
Higher order thinking skills goals for this activity
Other skills goals for this activity
Description of the activity/assignment
This problem set challenges students to interpret a simplified temperature-composition phase diagram for the system enstatite (Mg2Si2O6) - diopside (CaMgSi2O6), which are common constituents of peridotites, gabbros, and basalts. Students are provided with the phase diagram and asked to answer 13 questions about it.
Determining whether students have met the goals
Students have successfully met the goals of the assignment if they answer the problem set thoroughly and accurately.
More information about assessment tools and techniques.
Download teaching materials and tips
This problem set is the 10th
of 10 homework assignments used in a Mineralogy course.
You can also access the course syllabus
which includes lecture Powerpoints, practice exams, and links to the other problem sets used in this course.