| A | B |
|---|
| mineral | make up rocks in the crust |
| inorganic | not a living thing |
| crystal | repeated pattern that mineral forms |
| Moh's hardness scale | scratch test for mineral |
| streak | shows mineral's true color |
| luster | metallic or non-metallic |
| cleavage | breaks smoothly |
| fracture | rough break |
| magma | molten material inside earth |
| lava | molten material outside earth |
| solution | when a mineral is dissolved in water |
| vein | slab of rock different from surrounding rock |
| gemstone | hard, colorful mineral that can be cut or polished |
| ore | rock that can be mined and sold for profit |
| smelting | heating of ores to get minerals out |
| alloy | mixture of 2 or more metals |
| geode | rounded with hollow inside, filled with crystals |
| crystallization | atoms arrange themselves into crystal shape |
