GL 107 Earth Systems Science
K. Hannula
Discussion questions for 9/3/07
1. Define "mineral."
2. Find three objects around your dorm room, around your house, or around town that are made of or contain a mineral (or minerals). What minerals do they contain?
3. Find five different materials that are NOT minerals. Why isn't each one a mineral?
4. How are minerals different from rocks?
5. Define each of the following properties of minerals: crystal form, luster, color, streak, hardness, cleavage, fracture, specific gravity.
6. Which properties of minerals are controlled mainly by their crystal structure? Which are controlled mostly by their chemical composition?