$500
Large single black Ferberite crystal with attached colorless Fluorite, Siderite, and Pyrite crystals. The Ferberite is well terminated and complete on both sides. There is a large rosette of Siderite crystals sprinkled with Pyrite crystals attached to the right side of the termination and octahedral Fluorite attached to the faces (5 Fluorites on the front face and 5 on the back). Nice large, older specimen.