Bests & Worsts Reviews from Amazon

This product claims to be 24k 999/1000 gold. After dissolving in 0.2M pH 10.0 glycine buffer with 2:1 ratio of potassium cyanide and 0.2M potassium chloride, the resulting solution was a very dark green, indicating a significant presence of copper. 24k gold leaf from other sellers had no such coloration. I also used the Millipore Quant copper test strip which came back strongly positive as well. I have sent a sample out for quantification via ICP-MS and will update this review accordingly. edit: I noticed people are buying this for consumption. I would definitely recommend NOT EATING THIS! edit2: I received the analysis back from FLSmidth analytical services. It should be noted that not all of the material ended up dissolving, even after several days. However, the solution was 42.3ppm gold, and 271ppm copper. Even if the remainder of the undissolved fraction were 100% gold (which it probably isn't), this would still be about 50% copper. It is possible they sent the wrong item, but it was labeled as 24k 999/1000. This is not as advertised, and should not be labeled for consumption. I will file a complaint with Amazon with a note on the safety of this product.