I have to double check the ratio of vinegar to soda. May have to start all over again but used to it lol we will see

I was under the impression that real gold will not be affected by such I am trying to see if there is any gold in these pieces.

If you're looking for gold and you cant see any visible try crushing the stone to powder size like daves64 said, dont worry if there's gold, gold is very sectile, it will just smash flat, put a little dish soap in warm water and pan it out, another route is a fire assay if you think you're on to something, you can find someone online, they'll usually want a atleast 100grams of the material precrushed or they'll charge a crushing fee on top of the gold assay, dont just send the best material though, mix it up for more accuracy on how much gold is in the ore, costs run from 30$ to 70$ usually for just checking for Au.

I would just Google gold assayers near me, you might have someone or someplace that does it so you don't have to mail it off but if not Google need gold assayer or where to get my gold ore assayed etc..you should find something. Personally, I would just break a piece off and crush it to powder or flour size and pan it out, gold assayer is more for if you found an ore body of good size but even then youd want to send a mix of ore samples to get a more accurate estimate of how much gold is in the ore.