A small cavity in rock lined with crystals or other mineral matter

Let's find possible answers to "A small cavity in rock lined with crystals or other mineral matter" crossword clue. First of all, we will look for a few extra hints for this entry: A small cavity in rock lined with crystals or other mineral matter. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.