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|Section2= |Section3= |Section8= }} Lutetium(III) oxide, a white solid, is a cubic compound of lutetium sometimes used in the preparation of specialty glasses. It is also called lutecia. It is a lanthanide oxide, also known as a rare earth.〔Lutetium Oxide. 1997-2007. Metall Rare Earth Limited. ==History== In 1879, Jean-Charles-Galissard de Margnac (1817–1894), a French chemist, claimed to have discovered ytterbium, but actually he had found a mixture of elements. In 1907, a French chemist Georges Urbain (1872–1938) reported that ytterbium was a mixture of two new elements and not a single element. Two more chemists came to the same conclusion. They were from Germany, Karl Auer (1858–1929) and America, Charles James (1880–1926). The two compounds they discovered were neoytterbium and lutecium. However, none of these chemists actually dealt with pure lutetium. The compound they found was usually lutetium oxide.〔Lutetium. 2005-2006. Bookrags. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lutetium(III) oxide」の詳細全文を読む スポンサード リンク
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