• Please join our new sister site dedicated to discussion of gold, silver, platinum, copper and palladium bar, coin, jewelry collecting/investing/storing/selling/buying. It would be greatly appreciated if you joined and help add a few new topics for new people to engage in.

    Bullion.Forum

Need help finding an assayer/buyer for PGMs

Gold Refining Forum

Help Support Gold Refining Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

PGM-Au-Ag

Member
Joined
Jun 1, 2011
Messages
17
I have extracted some PGM metals, which I would like, assayed and sold. The compound is too complex for me to separate and cannot be cupled because of a Ni alloy. This metal even with the small amount of lead left from the extraction process will test on a Mizer M24 Gold tester ranging from 14kt to 24kt white Au so the Pt content is high. There should also be Rh in the metal as well. The density is Approx. 15.11 gm-cmˉᶾ
The surface of the metal was scratched with sandpaper to show it will not oxidize in air. In addition, HNO3 will not attack the metal. Upon heating it, nitric still has very little affect.
I have 3 troy ounces which I will send for an initial analysis and sale option to a qualified buyer/assayer. Please give detailed info if interested.
Thanks,
 

Attachments

  • 010.JPG
    010.JPG
    2.3 MB
Hi, and welcome to the forum.

Just a quick note, you don't have to double post, we will find your messages.

Will you tell us a little about your source material and how you extracted it in the first place?
 
The source material is quartz, and came from the northwest part of York County in SC near the old Martin Gold mine. I was working on Wolfs Creek. There are at least 5 or 6 old Gold mines dating back to the early 1900's on this 700 acre property. This can be verified if you can access a Geographical Information System (GIS) system then download the MRDS from the USGS.
 
The extraction process was a simple PGM flux with litharge at 2500 deg F. The prill was then placed in a scorifying dish to evaporate some of the lead.
 
PGM-Au-Ag said:
The extraction process was a simple PGM flux with litharge at 2500 deg F. The prill was then placed in a scorifying dish to evaporate some of the lead.

Cupel those prills to remove the remaining lead and produce a dore bead.

If you used something like "Action Mining's PGM Flux Formula", whether pre-made by them, or by you with their formula,
the lead prill can be cupeled, especially after the "Scorification Process", which should have removed any Nickel within the lead by the process of converting the bulk of it into litharge, which slags off the undesired impurities within the prill so that they do not cause loss of gold to the cupel during that process.

I know that I could do it.

Sincerely, Rick. "The Rock Man".
 
Back
Top