| A | B |
|---|
| Mineral | natural, nonliving solid crystals that make up rocks |
| Luster | how a mineral reflects light |
| Sediment | material that settles on the bottoms of oceans, lakes, and rivers |
| Sedimentary rock | rocks made from layers of sediment |
| igneous rock | rocks formed from molten rock (magma) |
| metamorphic rock | rocks that change from heat and pressure |
| Mohs Scale | rates hardness of a mineral |
| cleavage | how a mineral breaks |
| streak | the color left behind on a special plate when a mineral is scratched on it |
| the hardest mineral | diamond (10) |
| the softest mineral | talc (1) |
