| A | B |
|---|
| Geologist | scientists who study rocks and minerals |
| sand | very tiny pices of rock |
| pebble | small rocks sometimes called gravel |
| cobble | rocks larger than pebbles and sometimes used to make walkways |
| boulder | name for the largest size rocks |
| luster | shiny or dull |
| transparency | opaque, translucent, or transparent |
| halite | another name for salt |
| look alike | shape of all halite crystals |
| cube | minerals in the rock granite |
| How can a geologist test the hardness of a mineral | A geologist could use Moh's Scale to scratch the mineral. |
