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Bernalite, Goethite


Bernalite : Fe(OH)3 · nH2O (n = 0.0 to 0.25), Goethite : α-Fe3+O(OH)

Photo Copyright © Richard Bayerl - RBmineral - 2006  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Dark bottle green Bernalite crystal aggregates on mamillary Goethite. Picture width 3 mm. Collection and Photograph Richard Bayerl.
The Clara mine is the second world occurrence of this rare and unusual mineral.

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