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Yttrium, a rare earth metal, has a silver-grey color and metallic luster. It also appears highly crystalline. Yttrium displays chemical properties similar to those of rare earth elements. It dissolves in both mineral acids and alkalis, which are chemical opposites of one another.
Although metallic yttrium is not widely used, several of its compounds are. Yttrium oxide (Y 2 O 3) and yttrium orthovanadate (YVO 4) are both combined with europium to produce the red phosphor used in color televisions.lthough metallic yttrium is not widely used, several of its compounds are. Yttrium oxide (Y 2 O 3) and yttrium orthovanadate (YVO 4) are both combined with europium to produce the red phosphor used in color televisions.