| fetch higher price | 0.42 |
| produce a variety of co… | 0.33 |
| help to reverse oxidati… | 0.16 |
| bright yellow color | 0.33 |
| a carat weight of 24 | 0.28 |
| 24k | 0.59 |
| alloyed with other meta… | 0.57 |
| 24 karat | 0.56 |
| 24 carat | 0.46 |
| alloyed with zinc | 0.37 |
| small amount of copper | 0.28 |
| mixed with other metals | 0.57 |
| alloyed with copper | 0.43 |
| alloyed with silver | 0.42 |
| soft to use | 0.38 |
| recovered | 0.34 |
| soft to resist prolonge… | 0.33 |
| used in jewelry | 0.26 |
| hardened | 0.25 |
| used to maintain youthf… | 0.25 |
| required | 0.25 |