+Beryllium is a rare, light [Alkaline Earth Metal](/wiki/alkaline_earth_metal), a silvery-white element known for its exceptional stiffness and low density. This unique combination makes it vital for [Aerospace](/wiki/aerospace) components, X-ray windows, and high-performance alloys.
+## See also
+- [Element](/wiki/element)
+- [Metal](/wiki/metal)
+- [Alloy](/wiki/alloy)
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