Did you ever get something home and wonder why? In swapping and trading, I came into a large quantity of used Fluorite that is mixed with the small natural colored gravel. I know very little about Fluorite and it's uses so the big question is why do I have it and is it of any use to somebody? I hate to try to sell it if it is trash but I hate to throw it out if it is good to somebody. Any thoughts on whether it is worth keeping. I have more new in the bag than I will ever figure out a use. Not looking for a dollar value, just an opinion of it as good or junk.