Revision history of "Pyrolusite"

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  • curprev 16:23, 27 June 2019Admin talk contribs 197 bytes +197 Created page with "Pyrolusite is an important ore of manganese {{Ore |name=Pyrolusite |freq=common |hardness=6-6.5 |density=4.4-5 |chemf=MnO2 |m1=Mn }} ==Hazards== * Finely ground pyrolusite..."