Mining operations must maintain a positive cost-to-value ratio to remain economically viable; when extraction costs exceed the value of recovered resources, operations become unsustainable and must close, as demonstrated by the Argyle mine's closure after nearly 40 years of production.
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Argyle Mine Closed: The Shocking Truth About Pink Diamonds! #shortsAdded:
With all that wealth, all that rarity, all of that value coming out of one place, what kind of security does a mine like Argyle actually need?
After almost 40 years of production, in 2020, the Argyle mine closed. No big ceremony, no global news story, just quietly the gates shut. The diamond seams had simply run too thin. The cost of going deeper into the rock was more than what was coming out.
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