A black, shiny crystalline solid found in many species of seaweed

Let's find possible answers to "A black, shiny crystalline solid found in many species of seaweed" crossword clue. First of all, we will look for a few extra hints for this entry: A black, shiny crystalline solid found in many species of seaweed. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.