| Answer | Crossword Clue |
|---|---|
| hyalomelane | a vitreous form of basalt, aka tachylite also HYALOMELAN |
| Answer | Crossword Clue |
|---|---|
| hyalomelane | a vitreous form of basalt, aka tachylite also HYALOMELAN |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.