Rare-earth element
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The rare-earth elements, also called rare-earth metals, or rare earths, are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals. The 15 lanthanides, along with scandium, and
Rare-earth ore (shown with a 19 mm diameter US 1 cent coin for size comparison)
Refined rare-earth oxides are heavy, gritty powders usually brown or black, but can be lighter colors as shown here. Back row: gadolinium · praseodymium · cerium Middle row: samarium · lanthanum Front: neodymium
Scandium
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Scandium is a chemical element; it has symbol Sc and atomic number 21. It is a silvery-white metallic element found in the d-block of the periodic table. Usually, it is classified as a rare-earth elem
Rare-earth element
…or rare earths, are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals. The 15 lanthanides (or lanthanoids), along with scandium, and yttrium, are usually included as rare earths. Compounds containing rare-earth elements have diverse applications in electrical and electronic…
Scandium sublimed dendritic and 1cm 3 cube
Parts of the MiG-29 are made from Al-Sc alloy.