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Yttrium never occurs in nature as a free element. It is found in almost all rare earth minerals and in uranium ores. The yellow-brown ore xenotime can contain as much as 50% yttrium phophate (YPO4) and is mined in Malaysia.
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.