Diaphorite

A well developed intergrown cluster of the rare silver-lead-antimony sulphosalt Diaphorite, measuring to 5 mm with a silvery-grey metallic lustre, sitting in a Quartz crystal-lined cavity.  The Diaphorite crystals are heavily striated parallel to their long axis, a typical characteristic for the species.  Associated with rounded crystals of Galena, in a brown Sphalerite matrix with Galena cleavages.  From the Pribram mining district in the Czech Republic, this is an extremely rare species which is hardly ever seen in collections.