Manganese Dendrite

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Manganese Dendrite 

Solnhofen, Middle Franconia, Bavaria, Germany

18 x 13 x 2 cm

Upper Jurassic Period (152 million years)

This is a high quality, large specimen of fine detailed branching Psilomelane Dendrites on Limestone. The natural patterns on this limestone we’re formed when mineral rich water with high iron/manganese content moved into tiny cavities between the layers of limestone.