| Answer | Crossword Clue |
|---|---|
| NACRE | Mollusk shell liner |
| CONCH | Mollusk shell |
| NACRES | Mollusk shell materials |
| NACRE | Mollusk-shell material |
| NACRE | Mollusk shell product |
| NACRE | Mollusk shell material |
| OYSTER | Mollusk with an irregular shell |
| ABALONE | Mollusk with an iridescent shell |
| SNAIL | Mollusk with a spiral shell |
| PEARL | Abnormal growth in mollusk shell. |
| ABALONE | Mollusk with a spiral shell. |
| NACRE | Internal layer of a mollusk shell |
| ABALONE | Mollusk with an iridescent inner shell |
| LIMPET | Mollusk with a low conical shell |
