File:Erbium_(68_Er).jpg · Wikimedia Commons · See Wikimedia Commons
Also known as Er, element 68, 68Er
Erbium is a chemical element; it has 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, Sweden, which is the source of the element's name.
Erbium is a rare silvery-white metal with the chemical symbol Er that naturally occurs only in combination with other elements. It is a lanthanide element originally discovered in a Swedish mine and is now used in various industrial and technological applications.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).