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Platinum assay

How is Platinum assayed? We have been offered Pt direct from a miner
and wondered how it will be assayed by refiners. Has anybody got
some experience as to how this is done properly, what is paid
upfront to the miner ( we are only passing it on ) and how the Pt
will ultimately be refined (meltloss etc.) and the costs thereof?

Related Articles:

Maximizing Refining Returns for Platinum Alloys

Processes for refining gold jewelry scraps and wastes

Testing Precious Metals and Their Alloys

Thanks.
Juerg
@Juerg_P_Muff1
O R B I T Contemporary JEWELLERY
Award Winning Designs
QUEENSTOWN NZ