Krennerite

The Săcărâmb district in western mid-central Romania is this country’s only known deposit of tellurium and selenium mineralisation, located in Hunedoara county. This cabinet specimen contains a 5.5 cm wide band of metallic brassy gold to sooty grey Krennerite micro-crystals and granules embedded in a light grey-cream Quartzite matrix. Many of the micro-crystals display crystal faces but be warned, these are very tiny, all sub-millimetre. Krennerite is a rare gold-silver telluride and Săcărâmb is its type locality. Although the dendritic branching structure is not common, it is a habit sometimes observed in this suite of tellurides from Săcărâmb.