| Answer | Crossword Clue |
|---|---|
| polianite | manganese dioxide, occurring in tetragonal crystals nearly as hard as quartz |
| Answer | Crossword Clue |
|---|---|
| polianite | manganese dioxide, occurring in tetragonal crystals nearly as hard as quartz |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.