I had some very fine placer gold concentrate that was very difficult to separate. J&M Coins was recommended by a big gold buying company in Vancouver. They said to contact Joe at J&M Coins as he is the only person they trust to melt, assay and pay top dollar. I contacted Joe and he is very knowledgeable and honest. I mailed Joe some gold flakes and very fine gold concentrate. He proceeded the concentrate and called me the next day with the results and dollar value. I was pleasantly surprised with the amount of gold he recovered. I would highly recommend Joe due to his expertise, knowledge, and honesty.