| Answer | Crossword Clue |
|---|---|
| icestones | ICESTONE, a mineral which yields aluminium |
| icestone | a mineral which yields aluminium |
| glauconite | a mineral now forming in the sea, a hydrated potassium iron and aluminium silicate, which gives a green colour to some of the beds of the Greensand |
| glauconites | GLAUCONITE, a mineral now forming in the sea, a hydrated potassium iron and aluminium silicate, which gives a green colour to some of the beds of the Greensand |
