EnglishEdit

 
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NounEdit

pyrolusite ‎(countable and uncountable, plural pyrolusites)

  1. (mineralogy) A dark coloured mineral, consisting of manganese dioxide (MnO2), that is an important ore of manganese.

External linksEdit

  • pyrolusite Barthelmy, David (accessed 29 August 2016) Webmineral Mineralogy Database[1]
  • pyrolusite mindat.org[2], Hudson Institute of Mineralogy, accessed 29 August 2016