| A | B |
|---|
| luster | metallic or nonmetallic reflection |
| streak | powdered form that reveals a distinct color |
| inorganic | nonliving material |
| crystal | atoms arranged in regular repeating geometric pattern |
| fracture | rough, jagged breakage pattern |
| cleavage | smooth, flat breakage pattern |
| quartz | a mineral that fractures when broken |
| calcite | mineral that cleaves when broken |
| Mohs scale | rates hardness of minerals |
| gem | rare, beautiful mineral |
| solution | a material dissolved in another |
| mineral vein | a crack in rock that forms from evaporation or cooling of a solution |
| precipitate | when elements and compounds combine to form crystals as a solution evaporates |
| large crystals | form slowly from solution |
| small crystals | form quickly from solution |
