| A | B |
|---|
| Streak | color of the powder of the mineral when it is rubbed on porcelain tile |
| Hardness | determined by the ability of the mineral to scratch other substances |
| Cleavage | the way certain minerals split into smooth surfaces when under stress or struck |
| Fracture | irregular breaking pattern |
| Luster | based on whether the mineral is metallic or non metallic (quality of shine by reflecting light) |
| Galena has a white-yellow streak | False |
| Graphite has a greasy feel and black streak | True |
| Can Fluorite scratch Calcite? | YES |
| Is food organic or inorganic | Organic |
| Are minerals organic or inorganic? | Inorganic |
