Definitions for xenotime

This page provides all possible meanings and translations of the word xenotime

Princeton's WordNet

  1. xenotime(noun)

    a brown-to-yellow mineral that is a phosphate of yttrium in crystalline form


  1. xenotime(Noun)

    A yellow-brown mineral, yttrium phosphate (YPO)

Webster Dictionary

  1. Xenotime(noun)

    a native phosphate of yttrium occurring in yellowish-brown tetragonal crystals


  1. Xenotime

    Xenotime is a rare earth phosphate mineral, whose major component is yttrium orthophosphate. It forms a solid solution series with chernovite- and therefore may contain trace impurities of arsenic, as well as silicon dioxide and calcium. The rare earths dysprosium, erbium, terbium, and ytterbium, and metal elements like thorium and uranium are the expressive secondary components of xenotime. Due to uranium and thorium impurities, some xenotime specimens may be weakly to strongly radioactive. Lithiophyllite, monazite, and purpurite are sometimes grouped with xenotime in the informal "anhydrous phosphates" group. Xenotime is used chiefly as a source of yttrium and heavy lanthanide metals. Occasionally, gemstones are also cut from the finer xenotime crystals. The etymology of the name xenotime is from the Greek words "κενός vain and τιμή honor because the yttrium contained within it was first thought to be a new element. According to Vickery, the original name of the mineral was "kenotime", but due to a misprint, the "k" became an "x", and the change stuck. Xenotime was first described for an occurrence in Vest-Agder, Norway in 1832.

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