Critical Minerals AK – Indispensable Twins
Niobium, tantalum are closely related metals with nuanced properties that make them critical to many economic sectors North of 60 Mining News – December 1, 2018
Last updated 9/25/2020 at 7:31am
With nearly indistinguishable physical and chemical properties, niobium and tantalum are almost always found together in nature. Both are also critical to the defense, energy and high-tech sectors in the United States, but neither are mined domestically. For these reasons, the United States Geological Survey considers these transition metals "indispensable twins" that are critical to America's...