| Answer | Crossword Clue |
|---|---|
| COBALT | Glass-tinting element |
| BORON | Element used in glass production |
| Answer | Crossword Clue |
|---|---|
| COBALT | Glass-tinting element |
| BORON | Element used in glass production |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.