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== Referències ==
== Referències ==
* [https://www.mbari.org/wp-content/static/chemsensor/ba/barium.html «Bario». www.mbari.org]
* [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]