A very esthetic and unusual specimen from the remarkable finds at the Rudna Mine. A radiating spray of sharp, transparent bladed crystals of Gypsum are on a green matrix that has been determined to be in part Paratacamite. In excellent condition, many of the blades show fishtail terminations indicating that most are twinned. A fine example from recent discoveries, this can be shipped but we can also deliver to any of the major mineral shows that we attend.
A well crystalized cluster of Gypsum (Selenite) with rich green inclusions and encrustations of the rare mineral Herbertsmithite. This find has produced what are certainly the most esthetic examples of this specie as Herbertsmithite is not usually a "display" grade mineral. Recently Herbersmithite was found to have unique properties of changeable magnetism and with quantum spin properties. This was picked up in some of the popular media and somewhat exaggerated as news, even being called a "new form of matter". There was a brief period where tiny crumbs were being sold for high prices. Despite the inaccurate hype this is a remarkable mineral and on this specimen it is actually attractive.