This superb specimen comes from probably the best European location for the uncommon mineral Cronstedtite - the Herja Mine, Romania. This is a cracking specimen for the species. It shows to advantage the triangular pincoid terminations of the Cronstedtite crystals, which form an intergrown covering of rounded clusters with lustrous black colour. The Cronstedtite has mostly overgrown a chestnut brown druse of lenticular Siderite crystals, on a matrix of mixed granular Pyrite and areas of Cronstedtite. An exceptional specimen of Cronstedtite from Romania.