Sedimentary rock consisting of clay minerals used as fertiliser

Let's find possible answers to "Sedimentary rock consisting of clay minerals used as fertiliser" crossword clue. First of all, we will look for a few extra hints for this entry: Sedimentary rock consisting of clay minerals used as fertiliser. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.