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→Referències
* [https://books.google.es/books?id=yb9xTj72vNAC&redir_esc=y&hl=es Krebs, Robert E. (2006). The history and use of our earth's chemical elements: a reference guide. Greenwood Publishing Group. p. 80. ISBN 0-313-33438-2]
* [https://books.google.es/books?id=yb9xTj72vNAC&redir_esc=y&hl=es Krebs, Robert E. (2006). The history and use of our earth's chemical elements: a reference guide. Greenwood Publishing Group. p. 80. ISBN 0-313-33438-2]
* [https://www.usgs.gov/centers/national-minerals-information-center/barite-statistics-and-information Miller, M. M. Barite. USGS.gov]
* [https://www.usgs.gov/centers/national-minerals-information-center/barite-statistics-and-information Miller, M. M. Barite. USGS.gov]
* Schott, G. D. (1974). «Some Observations on the History of the Use of Barium Salts in Medicine». Med. Hist. 18 (1): 9-21. PMC 1081520. PMID 4618587. doi:10.1017/S0025727300019190
== Bibliografia ==
== Bibliografia ==