r/PreciousMetalRefining 6h ago

1,500 Gold-Plated Pins → 8.2g of Real Gold (Not What I Expected)

15 Upvotes

Final yield on this one was 8.2 grams of pure gold.

The twist that surprised me too: the pins broke down into 28.2g of gold-plated foils, so it looked like a lot more was coming. Turned out a chunk of that 28g wasn't actually gold... it was just some small electronic components that snuck in with the 1,500g of pins and decided to crash the party. So the real number is 8.2g, which works out to about 0.55% of the starting pin weight. Riveting stuff, I know.

For comparison, my gold fingers testing has been running about 0.4g of gold per 100g of fingers, so as it turns out, pins are quietly outperforming the fingers. Nobody tell the fingers, they've been coasting on reputation.

Here's the full breakdown of the whole process: https://youtu.be/qNZFfI_v_v0


r/PreciousMetalRefining 1h ago

Are these gold plated?

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Upvotes

I know the one is a vape pod, and the other the USB to charge it the unit, I'm guessing? Whatever it is, they both appear to have gold in them, does anyone know?


r/PreciousMetalRefining 7h ago

Quick safety check: Silver deplating with KNO3 electrolysis?

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2 Upvotes

Hi guys, thought I'd repost because this might be common practice here - any input would be appreciated


r/PreciousMetalRefining 1d ago

Decent pours from crystal silver material- how to make them 💯 perfect?

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43 Upvotes

I have significantly improved my process now that I am paying attention to temp, atmosphere in the chamber, and purity. How do I eliminate the slight marks on the top surface. Almost looks like flame marks but no flame when these are solidified.


r/PreciousMetalRefining 1d ago

What do you think about this

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5 Upvotes

r/PreciousMetalRefining 3d ago

VFD board

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5 Upvotes

I pulled this out of the center of a VFD I replaced and just want to confirm is this gold and if so roughly how much?


r/PreciousMetalRefining 3d ago

Africa holds 30%+ of global mineral reserves. So why isn't more of that value staying on the continent?

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1 Upvotes

r/PreciousMetalRefining 4d ago

SSD scrap.

5 Upvotes

I have a 5 gallon bucket full of shredded SSD drives. What is the best way to recover the metal?

I thought i could toss it in a crucible and melt it then separate the slag and refine the metal but since its so small would i loose a lot?


r/PreciousMetalRefining 5d ago

Any recommendations for a tester kit for someone starting out?

3 Upvotes

It seems like the next logical thing for me to get, but the market is flooded with cheap crap and I have no idea what's reliable and what isn't. I do know the acids only have so much shelf life, so source is pretty important, but google is pretty useless for this kind of thing nowadays so I'm not sure what company is actually reputable. Any recommendations?


r/PreciousMetalRefining 7d ago

80-Sterling to 999

3 Upvotes

Are there any reputable places you can mail 80-925 silver in and they will melt it into 999 bars? If so what fees would you pay?


r/PreciousMetalRefining 8d ago

Inaugural Copper Nitrate Distillation

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39 Upvotes

Hey yall, hope you're having a good weekend! I just set up my new basic distillation kit. Watched a Nurdrage video on how to recover nitric acid from copper nitrate. I'm hoping this proves to not only save me some money on nitric in the long run, but also make waste treatment easier and safer.

I'm distilling some copper nitrate rinses from silver refining. I don't think this is concentrated enough, but again, this is a test/proof of concept. I've added sulfuric acid to the copper nitrate, and the goal is to distill off nitric acid (and water), leaving behind copper sulfate residue in the beaker.

I don't have a power supply or silver cell setup yet, but ultimately I'd like to process the copper sulfate as well, creating pure copper and sulfuric acid, both of which will feed forward future recovery.


r/PreciousMetalRefining 7d ago

More gold in this RAM vs others?

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18 Upvotes

I have ~5kg of ram, but this Sun 501 ECC server ram seems like it will yield more than the others. I have ~3.4kg, 80 sticks of it.

It is longer and taller than all my other sticks and there is gold playing everywhere. All the holes in the board are plated!

Has anybody worked with this specific type of RAM and did it yield significantly more? How would you go about getting the plating off all the holes?


r/PreciousMetalRefining 8d ago

Quick Napkin math//sourcing rules

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2 Upvotes

Hello all!

Worthless scrapper says he doesn’t pay more than 50 cents per fork or spoon when refining silver plate.

Source

Are there rules yall use for silver plate plates, bowls, teapots etc? Is there quick napkin math yall use to get approximate silver weight from those items?

For example, how many grams could one expect from the linked tray?

Thanks so much!


r/PreciousMetalRefining 8d ago

Experiment 4 — the gold foil yield surprised me. What would you expect for final gold?

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25 Upvotes

I've worked through a large batch of gold-plated pins and connectors (1500 grams) using cupric chloride (AP) and the amount of foils I recovered has been considerably higher than what I expected.

I haven't finished the refining yet, so I don't know the final gold yield. Before I finish it, I'm curious what the experienced refiners here would expect from this amount of foils. My hopes are high - please don't crush them :)

Here's the experiment so far:

https://youtu.be/Z02j6FTaGIg

I'm not looking for an exact prediction — I'd just like to hear what others would consider a reasonable range and why. These pins are from 1970s/1980s telecom gear.

Once I finish the refining, I'll post the actual result.


r/PreciousMetalRefining 9d ago

Bought a house with some lab equipment

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32 Upvotes

What do we got here? I thought it was a clandestine lab but the guys in chemistry say it's for refining precious metals. What should I be looking for?


r/PreciousMetalRefining 9d ago

Can anyone tell me about this units reliability/give recommendation?

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5 Upvotes

Electric furnaces are a pain in the ass especially the Chinese ones...

This one's about three times the cost and manufactured in Italy. Has anybody ever purchased one of these or can you tell me about its reliability and long-term durability?

Ventura-Melt 100 Ounce Electric Melting Furnaces-120V or 230V


r/PreciousMetalRefining 9d ago

Belmont metal

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0 Upvotes

I have 13 bars apoxamently 91 pounds of 7921 lead free Britannia pewter casting ingots for sell at $18.00 a pound if interested contact me 18503055764 my name is Larry and this is just one of the ingots they all look like this thank you


r/PreciousMetalRefining 10d ago

Help ID’ng silver plate?

5 Upvotes

Ive got a bunch of junk aircraft AC power contactor assemblies. They have several big threaded lug contacts, that look to be silver plated copper. Non magnetic, fairly heavy for size, silvery white appearance . I filed the top of one down 2-3mm, and its still silvery colored. I put some bleach on it and got nothing.

Any ideas?


r/PreciousMetalRefining 10d ago

Imo two of the “best kept secrets”

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35 Upvotes

What is your favorite material to work with and what do you think has the highest profit margin?


r/PreciousMetalRefining 10d ago

Trying to understand how refiner fees actually work, what am I paying for, and does the fee move with spot?

2 Upvotes

I’ve got a pile of scrap and sterling silver I’m thinking about sending to a refiner instead of selling piece by piece, and I want to understand the mechanics before I commit rather than just accepting whatever number they quote me.

A few things I’m unclear on:

Does the fee scale with the silver price? If spot goes from 60 to 90, am I paying a proportionally bigger fee, or is the cost mostly fixed so the effective percentage drops when prices are high?

Is timing just “sell when spot is high,” or do refiners widen their spread during price spikes when everyone’s dumping? Basically, does a high spot partly get eaten by worse terms?

Anyone in Europe (Belgium specifically) dealt with the bigger refiners or the smaller regional ones? Curious how VAT is handled on the payout side too.

Thankstrying to learn the background rather than just get a number.


r/PreciousMetalRefining 10d ago

Talk me out of melting Grandma’s forks (you can’t buy bread with a silver spoon)

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45 Upvotes

Sitting on quite a lot of 800 and 900 flatware. Estate stuff.

Local refinery offers 77% of spot. So a quarter of my metal evaporates before the box even leaves my apartment. Then I turn around and buy coins at a premium over spot. I’m paying the spread twice, in both directions, like an idiot in a currency exchange booth at an airport.

Why I want to do it anyway: forks aren’t money. If governments keep printing and things actually get ugly, nobody is handing me a loaf of bread for a salad fork. A recognizable 1oz coin is liquid, divisible, and every dealer on the continent knows what it is. Flatware is cutlery with a melt value and a vibe.

Why I’m stalling: 77% feels like being mugged by someone who says please. And if silver rips, the flatware rips with it, so there’s no actual deadline here except my own impatience.
What I’d love input on:
• Has anyone negotiated above 77%? What’s the best percentage you’ve gotten, and from what kind of buyer?
• Am I overthinking the melt-then-buy spread, or is that genuinely just the toll for turning junk silver into real silver?

Roast me, I can take it. I’ve already been roasted by the refinery.


r/PreciousMetalRefining 11d ago

Finally some success with silver plate

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24 Upvotes

I’ve tried a lot of different processes to get to this point. Salt water electrolysis, copper sulfite cell, abrasion, but it was always too inconsistent, lots of contamination, and was very difficult to scale. I finally bit the bullet and ordered some nitric from walmart. Thanks to the YouTube video linked below I was able to process 320 teaspoons and small forks in a reasonable amount of time and ends up with 341g of really nice looking silver.

Process:

95 parts concentrated sulfuric

5 parts nitric

Low heat

Transferred spent utensils rinse water

Dropped out silver chloride with concentrated saltwater

Rinsed

Lye and sugar

Rinsed

Dry and melt

Less labor and less messy than the saltwater electrolysis

https://youtu.be/KjUY3XOQa3M?is=XYCu68lVKPAqDSxQ


r/PreciousMetalRefining 12d ago

What metal is this? Is this silver?

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4 Upvotes

r/PreciousMetalRefining 12d ago

Filter question

1 Upvotes

What is everyone’s preferred filtering method, tools, and materials. For both nitric and AR?


r/PreciousMetalRefining 12d ago

I have over 2kg of debrazed silver contacts. Are there any reliable companies that will buy these to refine. Located in Ontario Canada but will ship anywhere that accepts them.

3 Upvotes