University of Colorado at Boulder
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Students calculate the composition of minerals in weight percent given relative proportions of given end members. Students must also calculate mole percentages for feldspars based on their mineral analyses.
This problem set is designed for an undergraduate course in mineralogy for majors.
Skills and concepts that students must have mastered
Students should have an understanding of introductory chemistry, including stoichiometry.
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 activity is designed to improve students' ability to determine relative proportions of minerals given coupled substitutions.
Higher order thinking skills goals for this activity
Other skills goals for this activity
Description of the activity/assignment
Students are given two questions for each concept, in which they must (1) calculate the composition of minerals in weight percent given relative proportions of given end members and (2) calculate mole percentages for feldspars based on their mineral analyses (provided).
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 5th
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.