| A | B |
|---|
| solid | shape and volume does not change |
| inorganic | not alive non living material |
| natural | not man made, found on the earth |
| chemical composition | the make up of the material |
| crystal | orderly internal arragement |
| streak | color of a the mineral's powder |
| density | mass/volume |
| luster | how light reflects off a substance |
| hardness | how difficult it is to scratch |
| rock | made up of minerals |
| mineral | a single element, or a combination of elements |
| Mohs scale | lists hardness of minerals from 1-10 |
| color | most observable physical of minerals |
| metallic luster | looks like a metal; shiny to dull |
| Friedrich Mohs | the mineralogist that developed the hardness scale in the early 1800’s |
