| A | B |
|---|
| Mineral | natural, nonliving solid crystal that makes up rocks |
| Luster | the way a mineral's surface reflects light |
| Sediment | Any earth material that has been moved from one place to another and layed down on the surface of Earth. |
| Sedimentary rock | rock that forms when sediments are cemented together and harden |
| Igneous rock | rock that forms from molten (melted) rock |
| Metamorphic rock | rock that has changed as a result of heating and pressure |
