Talk:Holmium(III) oxide

External links modified
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 * Added archive https://web.archive.org/web/20100314163906/http://www.labshoponline.com/holmium-glass-filter-spectrophotometer-calibration-p-88.html to http://www.labshoponline.com/holmium-glass-filter-spectrophotometer-calibration-p-88.html

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Wrong mineral data
"The oxide, also called holmia, occurs as a component of the related erbium oxide mineral called erbia.". Not true. Neither such a mineral as "erbia" nor any mineral with the composition being erbium oxide exists. See https://www.ima-mineralogy.org/Minlist.htm and https://www.mindat.org/chemsearch.php. Eudialytos (talk) 20:04, 29 January 2021 (UTC)


 * In mineralogy, a mineral is a chemical compound of a characteristic chemical composition and/or structure, that has formed via geological processes. The holmia and erbia here were not formed by geological processes: they were formed via chemical processes in a laboratory.Eudialytos (talk) 23:12, 18 May 2023 (UTC)