| Answer | Crossword Clue |
|---|---|
| phosphatic | (chiefly of rocks and fertilizer) Containing or consisting of phosphates |
| carbonaceous | (chiefly of rocks or sediments) Consisting of or containing carbon or its compounds |
| aluminous | (chiefly of minerals and rocks) Containing alumina or aluminum |
| magnesian | (chiefly of rocks and minerals) Containing or relatively rich in magnesium |
| superphosphate | mixture prepared with phosphoric acid and containing about 45 percent of soluble phosphates, used as a fertilizer |
| superphosphates | mixture prepared with phosphoric acid and containing about 45 percent of soluble phosphates, used as a fertilizer |
