| Definition | Term |
| A narrow channel or slab of a mineral that is different from the surrounding rock | |
| Type of mine that has tunnels that extend deep into the ground, following veins of ore | |
| The process of searching for ore deposits | |
| A gemstone that has been cut and polished | |
| Rating that diamond is given on Mohs hardness scale | |
| Cannot form from materials that were once part of a living thing | |
| A rock that contains a metal or other useful minreal that can be mined and sold at a profit | |
| Hardest mineral on Mohs hardness scale | |
| Naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition | |
| Name of the scale used to determine hardness | |
| Rating talc is given on Mohs hardness scale | |
| Describes how a mineral looks when it breaks apart in an irregular way | |