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  Category:Halogen compounds – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:Halogen_compounds?uselang=de

  Keine Beschreibung vorhanden.

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  Mn Manganese: Natural Occurrence. Minerals (Native metal, solid solution ... - Wolfgang Töpper, Bärbel Sarbas - Google Books

  https://books.google.de/books?id=mYrqCAAAQBAJ&pg=PA137#v=onepage

  The present volume is the first of a series describing Mn minerals. There has been no attempt to provide a thorough (bibliographically complete) coverage of the literature. Rather, a selection of papers was undertaken to cover especially the various…

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