Hoffnung Mine, Colourful Lakelets, Wieściszowice, Gmina Marciszów, Kamienna Góra County, Lower Silesian Voivodeship, Poland
White fibrous pickeringite
© J.Kornaga
Pyrite cluster on the weathered fracture of the pyrite shales
Sample of mineral on quarry walls
Kolorowe Jeziorka area