Description
This is a very beautiful Pyrolusite specimen from a classic locality: Horní Blatná, Karlovy Vary (Karlsbad) District of the Czech Republic. The Polianite crystals (a variety of Pyrolusite, or to be precise, a Pyrolusite pseudomorph after Manganite) have exceptional flat terminations, they are sharp with a pronounces striation on the stubby prism and a strong metallic luster. A superb specimen!