Bright metallic grey acicular crystals of the uncommon mineral Zinkenite, form jack-straw aggregates on a druse of white Quartz. From the Alte Hoffnung Gottes Mine, at Kleinvoigtsberg west of Dresden. Crystals of Zinkenite measure to 2cm, with light biscuit coloured Siderite with micro-crystals of Calcite. A rare specimen from the mine.