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'''Yttrium''' is a stable silvery-colored metal. It occurs in nearly all rare-earth metals, and was found in high relatively [[concentration]]s in [[moon|lunar]] rock samples. Its largest use is to give the red color in television tubes, and it is often used as an additive in other metal [[alloy]]s.<ref>[http://periodic.lanl.gov/elements/39.html Yttrium], [[Los Alamos]] National Labs.</ref>

'''Yttrium''' is a stable silvery-colored metal. It occurs in nearly all rare-earth metals, and was found in high relatively [[concentration]]s in [[moon|lunar]] rock samples. Its largest use is to give the red color in television tubes, and it is often used as an additive in other metal [[alloy]]s.<ref>[http://periodic.lanl.gov/elements/39.html Yttrium], [[Los Alamos]] National Labs.</ref>