Cryptomelane : K(Mn4+7Mn3+)O16
Photo added to mindat.org
“Collection: Heinz Förch
Photo: Michael Förch
Analyzed by Prof. Walenta, Stuttgart
”
Michael Förch - 29th April 2016
Photo added to mindat.org
“Collection: Heinz Förch
Photo: Michael Förch
Analyzed by Prof. Walenta, Stuttgart”
Michael Förch - 29th April 2016
Photo added to mindat.org
“Collection: Heinz Förch
Photo: Michael Förch
Analyzed by Prof. Walenta, Stuttgart”
Michael Förch - 29th April 2016
Mindat.org Photo of the Day
Michael Förch - 17th October 2016
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