METALS
| Date | Clue |
|---|---|
| 2026-05-10 | Lithium, magnesium and aluminum |
| 2024-08-19 | Approximately three-quarters of all known chemical elements |
| 2018-01-24 | Elements with names ending in -ium, typically |
| 2013-04-16 | "Precious" or "heavy" things |
| 2010-06-13 | What the majority of elements are |
| 2007-12-26 | Most are good conductors |
| 2006-10-06 | Assayer's area of expertise |
| 2002-12-12 | Mint supplies |
| 1999-02-07 | Some are precious |
| 1996-07-14 | Lithium and others |
| 1995-05-05 | Silver and gold |
| 1995-04-08 | Mercury and others |
| 1994-05-19 | Forge materials |