| Answer | Crossword Clue |
|---|---|
| apophyllites | APOPHYLLITE, a mineral, hydrated calcium potassium silicate, that exfoliates on heating |
| apophyllite | a mineral, hydrated calcium potassium silicate, that exfoliates on heating |
| apophyllite | A mineral occurring typically as white glassy prisms, usually as a secondary mineral in volcanic rocks. It is a hydrated silicate and fluoride of calcium and potassium |
