Manganese Oxides, Albite, Annite
Tannenfeld, Maigen, Weinzierl am Walde, Krems-Land District, Lower Austria, Austria
Fine-grained inhomogeneous, layered Mn oxides (dark to very bright areas; the latter are enriched in trace amounts of Ba, Pb, P, Si, Al, Ca and +/- Ni, Co), in which embedded are euhedral, pseudo-orthorhombic albite crystals (grey) and a small curved aggregate of annite (bright grey, a bit below centre).
The Mn oxides are the alteration product ...
© Uwe Kolitsch