@MtnMusic...I sent an email to the Doctor on 7/10/21, in part regarding sodium sulphate mentioned in a presentation.
The Doctor's reply...re the sodium sulphate, there is a possibilty that it may be ammonium sulphate. Both options are relatively standard in nickel/cobalt circuits. Both products are saleable, ammonium sulphate more so in the Townsville region.
This was my oversight, so the ammonium sulphate is no mystery after all.
QPM Price at posting:
16.5¢ Sentiment: Hold Disclosure: Held
