| A | B |
|---|
| Mineral | A naturally occurring inorganic solid that has a crystal structure and a definite chemical composition. |
| Inorganic | A mineral cannot arise from materials that were once part of a living thing. |
| Crystal | The repeating pattern of a mineral's particles that form a solid. |
| Element | A substance composed of a single kind of atom. |
| Compound | Two or more elements combine so that the elements no longer have distinct properties. |
| Moh's Hardness Scale | This scale ranks 10 minerals from softest to hardest. |
| Streak | The color of its powder. Observe it by rubbing the mineral against a streak plate. |
| Luster | Term used to describe how a mineral reflects light off of its surface. |
| Cleavage | A mineral that splits easily along flat surfaces has cleavage. |
| Fracture | How a mineral looks when it breaks apart. |
| Fluorescence | Minerals that glow under ultra violet light properties. |
