| Answer | Crossword Clue |
|---|---|
| IRIDIUM | Platinum-group element |
| RHODIUM | Platinum family element |
| IRIDIUM | Platinum-like element. |
| OSMIC | Of a platinum element |
| PALLADIUM | Rare element harder than platinum. |
| IRIDIUM | Element used in platinum alloys. |
| RHODIUM | Rare element in platinum ores |
