Sorry I read your question wrong...lol Yes I had five of them tested with 14k acid and 10k acid, so with the 14k acid they dissolved very quickly and with the 10k acid it dissolved very slowly but not all the way so I'm not sure I think they might be 8k ,or 7k of gold but it is real! I have 40 or so of these vials and I only tested five of them and I got them all from one reputable source 6yrs ago! They might be some that have more gold in them but I dont know!
I have not by itself but with hard alcohol yes! Yeah I don't have a scale so I dont know what it weights, it was just a guess...lol They are a novelty item and is just for fun, a conversation peace I don't think you would get rich from them!