Rock 366 : Day 313 : Polianite

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Day 313 : Polianite (pyrolusite [manganese oxide] pseudomorph after manganite) from Horní Blatná (Bergstadt Platten), Karlovy Vary Region, Bohemia, Czech Republic. Cotton collection, Keele.

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~ by hypocentre on November 24, 2012.

 
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