A superb specimen with slightly multiple facetted, text-book crystals of this species from its most important continental European locale! This specimen came to us from the famous Dr. H.-J. Wilke Collection which we purchase a decade or so ago, and this specimen was treasured since this days. Here we have superbly metallic lustrous and sharp, intergrown crystals with a fine patina. Only very minor, almost invisible edge wear what is exceeding rare for species and locality due to the fact that Bournonite is a relatively delicate species,- and from this specific locale the specimen had to "survive" for several decades. This extraordinary piece can easily be valued at 1000 Euros or more. This is a killer mini all the way and way better in person.