Tsumeb, Otjikoto Region, Namibia

Small brown platey crystals of super rare Ferrilotharmeyerite crystals are intergrown on the surface of the Germanite-rich matrix with other minerals. We are uncertain of the other minerals, but one forms very lustrous greenish-black elongate clusters of crystals measuring to nearly 3mm in height, grown between tiny rosettes of a lime green mineral (possible Chenevixite?) and microcrystals of a bluish-green mineral. There are also a few 1mm rounded crystals of possible Silver Amalgam. Looks great under a loupe! From its type location.