2. Colors there is glassy, pearly, Dull, and Metallic.
3. Hardness you can scratch the mineral and compare to a piece of copper or glass and see how hard it is.
4. Mohs Hardness Scale it shows the scratch resistance in a mineral.
5. Crystalline Structure when it says a crystalline structure it means just like the same thing as the diamonds they can sometimes be inside the mineral if you look hard.
6. Rocks There are 3 different types of rock there is Igneous, Sedimentary, and
7. Diamonds little diamonds can sometimes be inside the mineral if you look really hard.
8. Fluorite this type of mineral contains some crystals and also calcium fluorite.
