Nice rocks, but do they have a gold? I will do the test and we will see it. 

It looks like your ore has significant potential. I'm currently developing a reactor that could be of interest to you. Once I've gathered all the components, assembled, and tested it, I'll inform you. I will publish the information for anyone who cares to build one.

Excellent videos, very educational and interesting. I learned alot from u. Many thanks

Thank you for this information,I have learned a lot thanks.

I love watching your videos thank you for making them

To release more gold from sulfides you should roast your ore first. It releases gold bond from sulfides!

Big great from Morocco to Sunny California.

Super pak andalah yg terbaik 👍❤

Подскажите пожалуйста ,чем гасите азотную кислоту? Чтоб золото обратно не растворялось.

I had no sound thanks anyway

Türkçe alt yazı ekleye bilirmisiniz

you are a very hard worker, very nice

يوجد زرنيخ في العينة!

Now I have sound