A display specimen of bladed black baryte and brown sphalerite over dark grey sphalerite from Cowshill, Weardale, Durham, UK. This display piece presents a beautiful aesthetic as the layered minerals show an attractive transition of lustres and habits. Sphalerite is a zinc sulfide mineral and the primary ore of zinc. This piece has a high content of iron giving it an beautiful sub-metallic lustre and an opaque, dark grey appearance. The piece weighs roughly 1.397 kg and measures approximately 13.5 x 8.5 x 9 cm, the sample is also supplied with an information label. This is a must have piece for any British mineral collector and a perfect addition to any collection.