| Answer | Crossword Clue |
|---|---|
| BAUXITE | Main source of aluminum |
| SHALE | Source of aluminum |
| ZEOLITE | A source of aluminum |
| BAUXITE | Good source of aluminum |
| diaspore | mineral, aluminum oxyhydroxide, AlO(OH), occurring in crystals, or more usually in lamellar or scaly masses: a principal constituent of bauxite and an important source of aluminum |
| beryl | a mineral consisting of a silicate of beryllium and aluminum of great hardness that occurs in colorless hexagonal prisms when pure and in various colors (as green, blue, yellow, or pink) when not pure, that is valued as a source of gems, and that is the principal source of beryllium |
