OtTeR2 Minerals and OtTeR2 Rocks are practice exams for the GLG103 lab practicals ending the mineral and rock segments of the course.

You will be shown photographs of the 32 minerals or 28 rocks covered in GLG103 Physical Geology and given two questions for the shown sample.  Click on the buttons you believe have the correct answers and click the Next button for an updated score.  Repeat this selection for all of the samples presented to you.