Second article on the deal: https://www.mediaite.com/media/news/trump-greenland-deals-reportedly-includes-u-s-sovereignty-over-small-pockets-of-territory/
NATO released a statement on Wednesday shortly after President Donald Trump announced he and NATO Secretary Secretary General Mark Rutte had “formed’ a “framework” of a deal on Greenland. The NATO statement came amid new reporting from the New York Times that deal may include the U.S. being given “sovereignty over small pockets” of land in Greenland.



Those are like literally everywhere though
Sand is everywhere. But you can’t refine it anywhere while keeping it economically viable.
Extraction/refining costs vary depending on purity, and there are a million other factors involved, and not just that even.
Setting up a large-scale sustained extraction operation requires many guarantees (including geopolitical, logistical, and stability/security considerations).
Otherwise, all world powers would be about done strip-mining Africa and Antarctica right now.