For someone in the business that is exactly right. Just like any good businessperson it is my duty to stay on top of the important things that...
It's not learning to grade that is so hard... It's learning how THE TPG's are grading that can be difficult, but in my business it is more...
I was told by a top tier grader in person that "the reverse can never help a coin's grade, but it can hurt it." These were the exact words out of...
The thing is... Doug is what we call an "old school" grader. I'm guessing he cut his teeth 30-50 years ago. This was before TPGs and in those days...
Thanks guys! Life got in the way of our little "experiment" for a while. But we are back and really motivated to keep up the fight.
The difference between those 2 coins is that one looks to be normal, or even heavy marks from circulation... Where the 2 cent piece was...
I think it's a slider...
The urea was used to neutralize the nitric acid before the precipitation process. The HCL was still acidic so when you add the storm agent the...
Gold filled is for all intents and purposes just really heavy gold plating... Could be up to 200 microns thick... The HGE and other types of...
I plan to scale it up to doing true scrap gold lots... This will result in a larger amount of gold. I just wanted to experiment on something that...
I think it's about in line with what I have been reading. One guy got 4.1g from 200g of gold filled. My lot was just a bit over 100g but had some...
Stop by my table and ask for Matt. I got something for you. ;)
Not beautiful but my 22k test acid does not touch it. It weighs 3.6 grams. This was from a small test lot of about 100 grams of gold filled. [ATTACH]
Ok, It just went into the furnace... filters, concentrate, and all. Here is your gold concentrate... the more brown the concentrate the more...
HDPE plastics actually work very well for this process. While the acids eat metals they don't touch the HDPE plastics. I just got done with the...
After you are done dissolving and start the gold reconstituting this is what you get. You can see the gold starting to come together. I am doing...
I'd start with acetone bath.
Good point. This is the process I am following. They are using computer parts... but it can be used for any gold refining....
I agree completely. I take careful steps to neutralize and dispose of the chemicals properly at my local county toxdrop.
I get a lot of scrap gold and gold filled items at the shop. We usually take the scrap gold 10k, 14k, 18k, ect. to our refiner and they process...
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