| Answer | Crossword Clue |
|---|---|
| silicas | SILICA, a form of silicon, also SILEX |
| silexes | SILEX, a form of silicon, also SILICA |
| coesite | a type of silica (a form of silicon, also SILEX) |
| coesites | COESITE, a type of silica (a form of silicon, also SILEX) |
| silica | a form of silicon, also SILEX |
| silex | a form of silicon, also SILICA |
