| A | B |
|---|
| mineral | solid element or compound from the Earth's crust that has a definite chemical composition and crystal shape |
| luster | the way that light reflects from the surface of a mineral |
| hardness | measure of how easily a mineral can be scratched |
| color | elements making up a mineral determine this |
| streak | the colored powder made by rubbing a mineral against a ceramic surface |
| cleavage | the tendency of some minerals to split along flat surfaces |
| streak plate | ceremic tile used in a streak test |
| Moh's Scale | simple tests used to determine the hardness of minerals |
| ore | minerals from which metals can be removed |
