Rocksmasher39
Member
Buenos dias! Good morning. I have a question , I'm trying to leach gold from a very heavy ( non magnetic) pre-cambrian stone that contained garnet. I'm trying to use the HCl and bleach method , but first I grounded up the very heavy rock to a fine gray powder, the smell is very strong , like a sulphur, volcanic smell , then I let it soak in chlorine bleach and HCl overnight, I then filtered it with filter paper and put it on heat,. For about 20 min then filtered it again onto a beaker and what came out was a lemonade yellow color liquid( not orange yellow how it's suppose to be), my question is this: why does the first filter paper contain a black , sooty grains mixed with gold glitter like specks? Shouldn't the HCL/bleach solution + heat have dissolved that?(btw posted are pics of the stone I'm referring to)