Description
One side of this ore specimen is cut and polished and shows alternating layers of Stibarsen and Siderite. Matt metallic botryoidal masses of Stibarsen, geochemically AsSb, as metallic kidney-shaped masses alternate with brownish Siderite. A classic ore specimen, rich, rare and historic from Třebsko, a Uranium ore district in the Příbram Region of the Central Bohemian Region of the Czech Republic.