The student completed tests on 7 unknown minerals to identify them. For each mineral, the student recorded observations of color, streak, luster, specific gravity, cleavage/fracture, and hardness. They also tested acid reaction. The student then identified each mineral and rated their certainty from 70-95%. For the minerals they were less certain about, they explained possible alternatives or inconsistencies with the reference information. The document also provided background on the key properties used to identify minerals such as luster, color, streak, cleavage and how these differentiate minerals from rocks.