Since there is a finite amount of zirconium on the planet, and it doesn’t regenerate, it is possible that we will reach a point at which we have extracted all the available zirconium from the Earth. Presently, there are an estimated 72 million metric tons of zirconium available in the Earth, and we mine a little more than 1 million metric tons every year; so exhaustion of zirconium resources isn’t exactly an immanent threat, but it could be at some point.
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