| Answer | Crossword Clue |
|---|---|
| tridymite | an orthorhombic form of silica, in hexagonal scales, often combined in threes |
| Answer | Crossword Clue |
|---|---|
| tridymite | an orthorhombic form of silica, in hexagonal scales, often combined in threes |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.