| opal → HasA → water | 0.72 | |
| opal → HasA → blue | 0.57 | |
| opal → HasA → mystical significance | 0.55 | |
| opal → HasA → green | 0.51 | |
| opal → HasA → the power | 0.46 | |
| opal → HasA → rainbow-like iridescence | 0.42 | |
| opal → HasA → long history | 0.37 | |
| opal → HasA → orange | 0.34 | |
| opal → HasA → satisfying amount of crunch | 0.23 | |
| opal → HasA → the colors of other gems | 0.20 | |
| opal → HasA → excellent play of fire | 0.16 | |
| opal → HasA → fire | 0.16 |