| A | B |
|---|
| mineral | a naturally occuring, inorganic solid that has a crystal structure and a definite chemical composition |
| crystal structure | the atoms in a crystal are arranged in an orderly, repeating pattern |
| streak | the color of a mineral's powder |
| luster | the way that a mineral's surface reflects kight |
| cleavage | breaks along flat surfaces |
| fracture | breaks along rough or irregular surfaces |
| ore | minerals that can sold for a profit |
| Moh's Scale | scale used to determine hardness |
| inorganic | not from once living things |
| diamond | hard known substance |
