I agree with Bunny. Oils can start out with sediment in it, but I think most manufacturers would filter that stuff out anyway, so that what they sell you is a clear oil without gunk in it. (When I say clear, I don't mean it can't be golden in color or anything.) It makes me think of dirty cooking oil in a deepfryer--you know, it starts out clear, but the more you use it the darker it gets, and the more grit shows up in it. Was the sediment in there when you originally purchased the oil, or is this something that has occured over time? I wouldn't use it either way, but if it has occured since you got it, I would say it's definitely tim to throw it away. I honestly question the vendor that said there were "lots of eo's" in the fragrance oil. Fragrance oils that most of us purchase are chemical reproductions--no eo's, or certainly very minimal amounts of eo's. If many eo's were used to make your fragrance oil it would probably be one very price FO. The other thing that bothers me is that you would receive a FO in a clear bottle--especially if it contained so many EO's.