| A | B |
|---|
| Minerals | a naturally occurring, inorganic solid with a definite crystalline structure and definite composition |
| Gem | a valuable mineral that is rare or difficult to obtain |
| Crystal | atoms arranged in a regular pattern that repeats over and over |
| Hardness | a measure of how easily a mineral can be scratched |
| Mohs | a scale of 1-10 which is used to measure hardness |
| Slow formation | larger crystals form when magma cools this way |
| Fast formation | smaller crystals form when magma cools this way |
| Streak test | rubbing minerals across a plate to observe the colored line remaining |
| Fracture | property of minerals that break with jagged surfaces |
| Luster | way in which mineral reflects light |
| cleavage | property of minerals that break along smooth, flat surfaces. |
| Evaporation of a liquid | a way of forming mineral |
| Color | one way unsure way to identify a mineral |
| Synthetic | man made minerals |
| Mining | a method for removing minerals from deep in the earth |
| Magma | molten rock |
| Economic geologist | applies geology to the exploration and development of mineral deposits |
| Asbestos | type of metamorphic rock that is fibrous mineral that causes asbestosis |
| Vein | mineral filled cracks in the earth |
