| Answer | Crossword Clue |
|---|---|
| ORE | Lead or copper, e.g. |
| METAL | Iron or copper, e.g. |
| ORE | Zinc or copper, e.g. |
| METAL | Brass or lead, e.g. |
| METAL | Copper, e.g. |
| RARECOINS | 1943 copper pennies, e.g. |
| ORES | Iron and copper, e.g. |
| ETCH | Produce art on copper, e.g. |
| ATNO | 29 for copper, e.g.: Abbr. |
| tyrosinase | A copper-containing enzyme that catalyzes the formation of quinones from phenols and polyphenols (e.g., melanin from tyrosine) |
