Erbium (Er) 24.26mm Metal Disc 99.9% Pure for Collection or Experiments bee One PCS Mat Weigth Is

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Erbium (Er) 24.26mm Metal Disc 99.9% Pure for Collection or Experiments bee One PCS Mat Weigth IsErbium (Er) 24. 26mm Metal Disc 99. 9% Pure for Collection or Experiments Erbium is a chemical element with the symbol Er and atomic number 68. A silvery white solid metal when artificially isolated, natural erbium is always found in chemical combination with other elements. It is a lanthanide, a rare earth element, originally found in the gadolinite mine in Ytterby in Sweden, from which it got its name. Wikipedia Quarter not included Product Features