GATES + BEZOS = NICKEL ? I took one quick scan of this article and said - nah...
https://stockhouse.com/news/newswire/2021/06/18/the-majors-are-exploring-for-nickel-top-ranked-mining-jurisdiction-here-s-your#FNL20210618
Rather - Gates + Bezos are not seeking nickel they're seeking - cobalt in the far reaches of, Canada. I quickly performed a web search to see if my memory was correct - and sure enough... I found the original article - correct article.
https://www.bloomberg.com/news/articles/2020-07-07/bill-gates-backed-company-to-hunt-for-cobalt-near-glencore-mine
Yip... test the Azurite - if it possesses a ( copper 3+ charge value ) it would / could mean it might be superior to that of cobalt based on, ionic capacity. (candidate for cobalt replacement)
The trick would revolve around - keeping the copper oxide ( azurite ) in an oxide state of it's
original Azurite state ensuring the copper 3+ charge bond remained intact.
Cheers...