RESOLVE ?Assaying for minerals over the years has dramatically changed.
Speed is of the essence. More exploration companies, larger drill
campaigns = all the more tests required.
Hence - quick partial acid digestion and off to fire assay.
It's the partial not fully dissolving and perhaps
lead and oxygen used to test Platinum's could pose issues
due to the relationship bonds between lead and Platinum's.
A good resolve ?
Slow things down.
Ensure a ( full ) acid digestion.
Using 2 parts Nitrogen + 2 parts chloric.
Once fully digested.
Then... stir to ensure metal ions have not dropped out.
Then, use spectrometry.
This method maybe slower...
But it would avert the fire assay process and the potential
for any plats to - meld with lead, oxidize with or like lead, absrob in cupplet.
Platinum's take longer to digest even with the best acids.
Increasing acid strength can create film or oxygen formation
on the metals which prevents dissolving.
Often requires adding more acid to ensure full digestion.
Can take several days with platinum group.
Would assay labs add more acids take days for full digestion ?
Or.... run the path, partial digestion and quick fire assay ?
Here's a video ( disolving platinum ) in aqua regia.
25 ml nitric
200 ml chloric
wow - 4:1 ratio
Look how long it takes to dissolve platinum.
Notice how he covered the besker.
Though he does not address this... covering the beaker while the
acids dissolve the platinum is a good proceedure.
Off gassing might carry away metal halides ( own opinion )
Every 4 hours he adds an additonal 25 ml of nitric acid.
Platinum is much more ( resistent to aqua regia ) than gold.
boom....there it is.
25 hrs
constant adding of nitric
over 3 days
3 min video
https://www.youtube.com/watch?app=desktop&v=APxL87X92t4
Platinum Group is a diff ( beast ) mineral.
Requires far more attention.
Cannot be treated with mass assaying like other minerals.
Full Dissolution ( digestion in acids )
Spectrometry.
Even better = Electrolysis.
I have no respect for fire assaying when it comes to platinums.
Especially when Wellgreen has so many varieties...
lead + platinums
bismuth + platinums
tellurium + platinums
nickel + platinums
antimony + platinums
As mentioned prior...
if my theory and research on this subject has any merit
it could change the dynamics of Wellgreen with a positive outcome.
Far more platinum oz's.
How much platinum could be lost in bonds of just these two minerals ?
2.4 billion pounds Nickel
33.5 billion pounds of lead ( using historical stats )
Good question, eh?
If my research has helped, inbox me.
Cheers.