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Minerals Objective Sheet At the end of this unit, each student should be able to: 1. List and explain the three-part definition (principle characteristics) of a mineral. 2. Describe how crystalline minerals form from a. Evaporation of solutions b. Cooling of melted substances 3. List and describe the properties of minerals used to identify them. 4. Use a dichotomous key to identify specimens of common minerals. 5. Explain the difference between minerals and rocks. 6. Explain the meaning of the following vocabulary words: Dissolve Cleavage Melt Crystal form Color Acid test Streak Fluorescence Luster Evaporite Hardness Recrystallize (precipitate) Freeze