| A | B |
| mineral | a naturally occuring inorganic solid that has a crystal structure and a definate chemical composition |
| inorganic | not formed from living things or the remains of living things |
| Mohs Hardness Scale | a scale ranking ten minerals from softest to hardest, used in testing the hardness in minerals |
| streak | the color of a mineral's powder |
| density | the amount of mass in a given space; mass per unit volume |
| luster | the way a mineral reflects light from its surface |
| cleavage | a mineral's ability to split easily along flat surfaces |
| fracture | the way a mineral looks when it breaks apart in an irregular way |
| flourescence | the property of a mineral in which the mineral glows under ultraviolet light |
| talc | Softest mineral on the Moh's Hardness Scale |
| diamond | The hardest mineral on the Moh's Hardness Scale. |
| The five characteristics of a mineral | DISCO |